Linux ip-172-26-2-223 5.4.0-1018-aws #18-Ubuntu SMP Wed Jun 24 01:15:00 UTC 2020 x86_64
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: 172.26.2.223 | : 18.226.181.89
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8.1.13
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[ HOME SHELL ]
Name
Size
Permission
Action
1st.result
597
B
-rw-r--r--
acl_tables_errors_debug.result
8.93
KB
-rw-r--r--
alias.result
13.58
KB
-rw-r--r--
almost_full.result
1.11
KB
-rw-r--r--
alter_table-big.result
5.45
KB
-rw-r--r--
alter_table.result
154.41
KB
-rw-r--r--
analyze.result
3.69
KB
-rw-r--r--
ansi.result
1.92
KB
-rw-r--r--
archive-big.result
616
B
-rw-r--r--
archive.result
525.18
KB
-rw-r--r--
archive_bitfield.result
4.26
KB
-rw-r--r--
archive_debug.result
355
B
-rw-r--r--
archive_gis.result
25.98
KB
-rw-r--r--
archive_no_symlink.result
882
B
-rw-r--r--
archive_plugin.result
531
B
-rw-r--r--
archive_symlink.result
2.3
KB
-rw-r--r--
auth_rpl.result
1.85
KB
-rw-r--r--
auto_increment.result
12.11
KB
-rw-r--r--
backup.result
4.29
KB
-rw-r--r--
bench_count_distinct.result
557
B
-rw-r--r--
big_test.require
17
B
-rw-r--r--
bigint.result
23.33
KB
-rw-r--r--
binary.result
6.09
KB
-rw-r--r--
binary_to_hex.result
5.87
KB
-rw-r--r--
binlog_tx_isolation.result
1.71
KB
-rw-r--r--
blackhole.result
613
B
-rw-r--r--
blackhole_plugin.result
565
B
-rw-r--r--
bool.result
2.67
KB
-rw-r--r--
bootstrap.result
525
B
-rw-r--r--
bug12368203.result
2.77
KB
-rw-r--r--
bug12427262.result
1.86
KB
-rw-r--r--
bug12969156.result
952
B
-rw-r--r--
bug17076131.result
322
B
-rw-r--r--
bug33509.result
2.31
KB
-rw-r--r--
bug39022.result
1.2
KB
-rw-r--r--
bug46080.result
669
B
-rw-r--r--
bug46261.result
353
B
-rw-r--r--
bug46760.result
1.26
KB
-rw-r--r--
bug47671.result
287
B
-rw-r--r--
bug58669.result
480
B
-rw-r--r--
bulk_replace.result
281
B
-rw-r--r--
cache_innodb.result
6.96
KB
-rw-r--r--
case.result
10.63
KB
-rw-r--r--
case_insensitive_file_system.r...
46
B
-rw-r--r--
case_sensitive_file_system.req...
47
B
-rw-r--r--
cast.result
16.27
KB
-rw-r--r--
change_user.result
2.82
KB
-rw-r--r--
charset.result
2.14
KB
-rw-r--r--
check.result
2.05
KB
-rw-r--r--
check_auto_permission.result
261
B
-rw-r--r--
check_var_limit.require
8
B
-rw-r--r--
client_xml.result
2.38
KB
-rw-r--r--
comment_column.result
141.21
KB
-rw-r--r--
comment_column2.result
355.68
KB
-rw-r--r--
comment_index.result
173.32
KB
-rw-r--r--
comment_table.result
28.95
KB
-rw-r--r--
comments.result
2.34
KB
-rw-r--r--
commit.result
14.83
KB
-rw-r--r--
commit_1innodb.result
19.59
KB
-rw-r--r--
compare.result
5.07
KB
-rw-r--r--
compress.result
66.24
KB
-rw-r--r--
concurrent_innodb_safelog.resu...
32.01
KB
-rw-r--r--
concurrent_innodb_unsafelog.re...
31.74
KB
-rw-r--r--
condition_filter.result
2.17
KB
-rw-r--r--
connect.result
11.02
KB
-rw-r--r--
connect_debug.result
1.46
KB
-rw-r--r--
consistent_snapshot.result
1.14
KB
-rw-r--r--
constraints.result
2.56
KB
-rw-r--r--
count_distinct.result
8.04
KB
-rw-r--r--
count_distinct2.result
2.21
KB
-rw-r--r--
count_distinct3.result
278
B
-rw-r--r--
create-big.result
7.6
KB
-rw-r--r--
create.result
71.42
KB
-rw-r--r--
create_not_windows.result
961
B
-rw-r--r--
create_select_tmp.result
846
B
-rw-r--r--
create_w_max_indexes_64.result
84.46
KB
-rw-r--r--
csv.result
59.08
KB
-rw-r--r--
csv_alter_table.result
1.17
KB
-rw-r--r--
csv_not_null.result
1.93
KB
-rw-r--r--
ctype_ascii.result
2.5
KB
-rw-r--r--
ctype_big5.result
34.28
KB
-rw-r--r--
ctype_binary.result
82.78
KB
-rw-r--r--
ctype_collate.result
18.3
KB
-rw-r--r--
ctype_cp1250_ch.result
22.29
KB
-rw-r--r--
ctype_cp1251.result
96.48
KB
-rw-r--r--
ctype_cp932.result
996
B
-rw-r--r--
ctype_cp932_binlog_row.result
734
B
-rw-r--r--
ctype_cp932_binlog_stm.result
251.36
KB
-rw-r--r--
ctype_create.result
3.12
KB
-rw-r--r--
ctype_errors.result
1.66
KB
-rw-r--r--
ctype_eucjpms.result
400.48
KB
-rw-r--r--
ctype_euckr.result
435.54
KB
-rw-r--r--
ctype_filename.result
324
B
-rw-r--r--
ctype_filesystem.result
341
B
-rw-r--r--
ctype_gb18030.result
69.33
KB
-rw-r--r--
ctype_gb18030_binlog.result
909
B
-rw-r--r--
ctype_gb18030_conversion.resul...
1.17
MB
-rw-r--r--
ctype_gb18030_encoding_cn.resu...
41.39
KB
-rw-r--r--
ctype_gb18030_encoding_utf8.re...
40.64
KB
-rw-r--r--
ctype_gb18030_ligatures.result
24.81
KB
-rw-r--r--
ctype_gb2312.result
33.73
KB
-rw-r--r--
ctype_gbk.result
50.07
KB
-rw-r--r--
ctype_gbk_binlog.result
633
B
-rw-r--r--
ctype_hebrew.result
254
B
-rw-r--r--
ctype_latin1.result
119.29
KB
-rw-r--r--
ctype_latin1_de.result
15.74
KB
-rw-r--r--
ctype_latin2.result
13.71
KB
-rw-r--r--
ctype_latin2_ch.result
25.11
KB
-rw-r--r--
ctype_ldml.result
28.13
KB
-rw-r--r--
ctype_like_range.result
80.89
KB
-rw-r--r--
ctype_many.result
41.87
KB
-rw-r--r--
ctype_mb.result
2.13
KB
-rw-r--r--
ctype_recoding.result
9.6
KB
-rw-r--r--
ctype_sjis.result
195.81
KB
-rw-r--r--
ctype_tis620.result
101.02
KB
-rw-r--r--
ctype_uca.result
155.4
KB
-rw-r--r--
ctype_ucs.result
143.96
KB
-rw-r--r--
ctype_ucs2_def.result
1.05
KB
-rw-r--r--
ctype_ujis.result
365.3
KB
-rw-r--r--
ctype_ujis_ucs2.result
548.6
KB
-rw-r--r--
ctype_utf16.result
47.3
KB
-rw-r--r--
ctype_utf16_def.result
273
B
-rw-r--r--
ctype_utf16_uca.result
72.47
KB
-rw-r--r--
ctype_utf16le.result
52.96
KB
-rw-r--r--
ctype_utf32.result
50.55
KB
-rw-r--r--
ctype_utf32_uca.result
75.29
KB
-rw-r--r--
ctype_utf8.result
169.69
KB
-rw-r--r--
ctype_utf8mb4.result
83.57
KB
-rw-r--r--
ctype_utf8mb4_heap.result
75.01
KB
-rw-r--r--
ctype_utf8mb4_innodb.result
77.85
KB
-rw-r--r--
ctype_utf8mb4_myisam.result
77.43
KB
-rw-r--r--
ctype_utf8mb4_uca.result
38.82
KB
-rw-r--r--
daemonize_opt.result
14
B
-rw-r--r--
datadir_permission.result
1.09
KB
-rw-r--r--
date_formats.result
28.69
KB
-rw-r--r--
ddl_i18n_koi8r.result
123.56
KB
-rw-r--r--
ddl_i18n_utf8.result
126.58
KB
-rw-r--r--
deadlock_innodb.result
2.35
KB
-rw-r--r--
debug_sync.result
12.18
KB
-rw-r--r--
debug_sync2.result
1.15
KB
-rw-r--r--
default.result
8.17
KB
-rw-r--r--
delete.result
22.7
KB
-rw-r--r--
delete_all_rows.result
2.26
KB
-rw-r--r--
deprecate_eof.result
8
KB
-rw-r--r--
deprecated_features.result
2.03
KB
-rw-r--r--
derived.result
172.18
KB
-rw-r--r--
dirty_close.result
345
B
-rw-r--r--
disabled_replication.result
4.82
KB
-rw-r--r--
disabled_storage_engines.resul...
3.28
KB
-rw-r--r--
disconnect_on_expired_password...
1.42
KB
-rw-r--r--
disconnect_on_expired_password...
1.49
KB
-rw-r--r--
distinct.result
80.43
KB
-rw-r--r--
drop-no_root.result
454
B
-rw-r--r--
drop.result
6.71
KB
-rw-r--r--
drop_debug.result
485
B
-rw-r--r--
ds_mrr-big.result
2.93
KB
-rw-r--r--
dynamic_tracing.result
813
B
-rw-r--r--
empty_table.result
229
B
-rw-r--r--
enable_cleartext_plugin.result
1.4
KB
-rw-r--r--
endspace.result
7.25
KB
-rw-r--r--
eq_range_idx_stat.result
6.56
KB
-rw-r--r--
error_simulation.result
3.17
KB
-rw-r--r--
errors.result
6.11
KB
-rw-r--r--
events_1.result
28.3
KB
-rw-r--r--
events_2.result
17.79
KB
-rw-r--r--
events_and_binlog.result
297
B
-rw-r--r--
events_bugs.result
40.94
KB
-rw-r--r--
events_embedded.result
86
B
-rw-r--r--
events_grant.result
10.33
KB
-rw-r--r--
events_logs_tests.result
2.37
KB
-rw-r--r--
events_microsec.result
810
B
-rw-r--r--
events_restart.result
4.36
KB
-rw-r--r--
events_scheduling.result
3.11
KB
-rw-r--r--
events_stress.result
2.39
KB
-rw-r--r--
events_time_zone.result
5.4
KB
-rw-r--r--
events_trans.result
3.61
KB
-rw-r--r--
events_trans_notembedded.resul...
1.88
KB
-rw-r--r--
examined_rows.result
6.73
KB
-rw-r--r--
execution_constants.result
1.03
KB
-rw-r--r--
explain.result
39.39
KB
-rw-r--r--
explain_for_connection_crash.r...
1004
B
-rw-r--r--
explain_for_connection_rqg_jso...
87.48
KB
-rw-r--r--
explain_for_connection_rqg_tra...
35.98
KB
-rw-r--r--
explain_for_connection_small_j...
25.46
KB
-rw-r--r--
explain_for_connection_small_t...
10.3
KB
-rw-r--r--
explain_json_all.result
98.36
KB
-rw-r--r--
explain_json_none.result
102.18
KB
-rw-r--r--
explain_other.result
42.23
KB
-rw-r--r--
file_contents.result
181
B
-rw-r--r--
filesort_debug.result
4.59
KB
-rw-r--r--
filesort_merge.result
2.02
KB
-rw-r--r--
filesort_pack.result
675
B
-rw-r--r--
filter_single_col_idx_big.resu...
38.05
KB
-rw-r--r--
filter_single_col_idx_small.re...
42.99
KB
-rw-r--r--
fix_priv_tables.result
1.96
KB
-rw-r--r--
flush.result
13.78
KB
-rw-r--r--
flush2.result
1.06
KB
-rw-r--r--
flush_block_commit.result
1.47
KB
-rw-r--r--
flush_block_commit_notembedded...
872
B
-rw-r--r--
flush_read_lock.result
73.94
KB
-rw-r--r--
flush_read_lock_kill.result
1.12
KB
-rw-r--r--
flush_table.result
12.33
KB
-rw-r--r--
foreign_key.result
4.84
KB
-rw-r--r--
fulltext.result
32.93
KB
-rw-r--r--
fulltext2.result
7.54
KB
-rw-r--r--
fulltext3.result
815
B
-rw-r--r--
fulltext_cache.result
2.67
KB
-rw-r--r--
fulltext_distinct.result
1.45
KB
-rw-r--r--
fulltext_left_join.result
4
KB
-rw-r--r--
fulltext_multi.result
766
B
-rw-r--r--
fulltext_order_by.result
6.05
KB
-rw-r--r--
fulltext_plugin.result
229
B
-rw-r--r--
fulltext_update.result
1.11
KB
-rw-r--r--
fulltext_var.result
1.3
KB
-rw-r--r--
func_aes.result
12.97
KB
-rw-r--r--
func_aes_cfb1.result
4.5
KB
-rw-r--r--
func_aes_cfb128.result
4.57
KB
-rw-r--r--
func_aes_cfb8.result
4.5
KB
-rw-r--r--
func_aes_kdf_hkdf.result
3.94
KB
-rw-r--r--
func_aes_kdf_pbkdf2_hmac.resul...
6.79
KB
-rw-r--r--
func_aes_misc.result
8.46
KB
-rw-r--r--
func_aes_ofb.result
4.47
KB
-rw-r--r--
func_analyse.result
23.09
KB
-rw-r--r--
func_bitwise_ops.result
80.6
KB
-rw-r--r--
func_compress.result
5.46
KB
-rw-r--r--
func_concat.result
4.37
KB
-rw-r--r--
func_crypt.result
2.05
KB
-rw-r--r--
func_date_add.result
3.74
KB
-rw-r--r--
func_default.result
1.45
KB
-rw-r--r--
func_des_encrypt.result
2.68
KB
-rw-r--r--
func_digest.result
122.35
KB
-rw-r--r--
func_encrypt.result
19.82
KB
-rw-r--r--
func_encrypt_nossl.result
7.75
KB
-rw-r--r--
func_encrypt_ucs2.result
1.21
KB
-rw-r--r--
func_equal.result
1.27
KB
-rw-r--r--
func_found_rows.result
285
B
-rw-r--r--
func_gconcat.result
49.9
KB
-rw-r--r--
func_group.result
66.46
KB
-rw-r--r--
func_group_innodb.result
6.07
KB
-rw-r--r--
func_group_innodb_16k.result
693
B
-rw-r--r--
func_if.result
6.29
KB
-rw-r--r--
func_in_all.result
49.27
KB
-rw-r--r--
func_in_icp.result
48.91
KB
-rw-r--r--
func_in_icp_mrr.result
49.21
KB
-rw-r--r--
func_in_mrr.result
48.93
KB
-rw-r--r--
func_in_mrr_cost.result
48.65
KB
-rw-r--r--
func_in_none.result
48.6
KB
-rw-r--r--
func_isnull.result
827
B
-rw-r--r--
func_like.result
7.78
KB
-rw-r--r--
func_math.result
42.22
KB
-rw-r--r--
func_misc.result
36.8
KB
-rw-r--r--
func_op.result
2.12
KB
-rw-r--r--
func_regexp.result
4.47
KB
-rw-r--r--
func_rollback.result
13.02
KB
-rw-r--r--
func_sapdb.result
12.49
KB
-rw-r--r--
func_set.result
8.9
KB
-rw-r--r--
func_str.result
174.94
KB
-rw-r--r--
func_str_debug.result
349
B
-rw-r--r--
func_str_no_ps.result
1.3
KB
-rw-r--r--
func_system.result
2.9
KB
-rw-r--r--
func_test.result
14.47
KB
-rw-r--r--
func_time.result
71.47
KB
-rw-r--r--
func_timestamp.result
518
B
-rw-r--r--
func_weight_string.result
11.56
KB
-rw-r--r--
function_defaults.result
109.58
KB
-rw-r--r--
gcc296.result
528
B
-rw-r--r--
get_diagnostics.result
28.42
KB
-rw-r--r--
get_table_share.result
20.56
KB
-rw-r--r--
gis-debug.result
10.1
KB
-rw-r--r--
gis-precise.result
162.17
KB
-rw-r--r--
gis-rt-precise.result
2.42
KB
-rw-r--r--
gis-rtree.result
102.08
KB
-rw-r--r--
gis.result
131.8
KB
-rw-r--r--
grant.result
121.17
KB
-rw-r--r--
grant2.result
36.52
KB
-rw-r--r--
grant3.result
8.41
KB
-rw-r--r--
grant4.result
9.36
KB
-rw-r--r--
grant_alter_user.result
40.96
KB
-rw-r--r--
grant_alter_user_qa.result
98.38
KB
-rw-r--r--
grant_cache.result
6.71
KB
-rw-r--r--
grant_debug.result
8.5
KB
-rw-r--r--
grant_explain_non_select.resul...
10.27
KB
-rw-r--r--
grant_lowercase_fs.result
1.2
KB
-rw-r--r--
grant_user_lock.result
16.9
KB
-rw-r--r--
grant_user_lock_qa.result
41.4
KB
-rw-r--r--
greedy_optimizer.result
632.59
KB
-rw-r--r--
greedy_search.result
31.05
KB
-rw-r--r--
group_by.result
120.07
KB
-rw-r--r--
group_by_fd_no_prot.result
81.15
KB
-rw-r--r--
group_by_fd_ps_prot.result
61.28
KB
-rw-r--r--
group_min_max.result
189.52
KB
-rw-r--r--
group_min_max_innodb.result
25.09
KB
-rw-r--r--
gtid_next_xa_binlog_off.result
30.9
KB
-rw-r--r--
gtids_anonymous_trxs_violation...
687
B
-rw-r--r--
handler_innodb.result
41.58
KB
-rw-r--r--
handler_myisam.result
45.48
KB
-rw-r--r--
handler_read_last.result
1.15
KB
-rw-r--r--
have_big5.require
79
B
-rw-r--r--
have_binlog_format_mixed.requi...
40
B
-rw-r--r--
have_binlog_format_row.require
38
B
-rw-r--r--
have_binlog_format_statement.r...
44
B
-rw-r--r--
have_compress.require
38
B
-rw-r--r--
have_cp1250_ch.require
79
B
-rw-r--r--
have_cp1251.require
84
B
-rw-r--r--
have_cp866.require
82
B
-rw-r--r--
have_cp932.require
83
B
-rw-r--r--
have_crypt.require
35
B
-rw-r--r--
have_debug.require
8
B
-rw-r--r--
have_debug_sync.require
13
B
-rw-r--r--
have_eucjpms.require
87
B
-rw-r--r--
have_euckr.require
81
B
-rw-r--r--
have_gb18030.require
87
B
-rw-r--r--
have_gb2312.require
84
B
-rw-r--r--
have_gbk.require
78
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Code Editor : type_time.result
drop table if exists t1; SET sql_mode = 'NO_ENGINE_SUBSTITUTION'; Warnings: Warning 3090 Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release. create table t1 (t time); insert into t1 values("10:22:33"),("12:34:56.78"),(10),(1234),(123456.78),(1234559.99),("1"),("1:23"),("1:23:45"), ("10.22"), ("-10 1:22:33.45"),("20 10:22:33"),("1999-02-03 20:33:34"); Warnings: Note 1265 Data truncated for column 't' at row 13 insert t1 values (30),(1230),("1230"),("12:30"),("12:30:35"),("1 12:30:31.32"); select * from t1; t 10:22:33 12:34:57 00:00:10 00:12:34 12:34:57 123:46:00 00:00:01 01:23:00 01:23:45 00:00:10 -241:22:33 490:22:33 20:33:34 00:00:30 00:12:30 00:12:30 12:30:00 12:30:35 36:30:31 insert into t1 values("10.22.22"),(1234567),(123456789),(123456789.10),("10 22:22"),("12.45a"); Warnings: Warning 1265 Data truncated for column 't' at row 1 Warning 1264 Out of range value for column 't' at row 2 Warning 1264 Out of range value for column 't' at row 3 Warning 1264 Out of range value for column 't' at row 4 Warning 1265 Data truncated for column 't' at row 6 select * from t1; t 10:22:33 12:34:57 00:00:10 00:12:34 12:34:57 123:46:00 00:00:01 01:23:00 01:23:45 00:00:10 -241:22:33 490:22:33 20:33:34 00:00:30 00:12:30 00:12:30 12:30:00 12:30:35 36:30:31 00:00:10 00:00:00 838:59:59 838:59:59 262:22:00 00:00:12 drop table t1; create table t1 (t time); insert into t1 values ('09:00:00'),('13:00:00'),('19:38:34'), ('13:00:00'),('09:00:00'),('09:00:00'),('13:00:00'),('13:00:00'),('13:00:00'),('09:00:00'); select t, time_to_sec(t),sec_to_time(time_to_sec(t)) from t1; t time_to_sec(t) sec_to_time(time_to_sec(t)) 09:00:00 32400 09:00:00 13:00:00 46800 13:00:00 19:38:34 70714 19:38:34 13:00:00 46800 13:00:00 09:00:00 32400 09:00:00 09:00:00 32400 09:00:00 13:00:00 46800 13:00:00 13:00:00 46800 13:00:00 13:00:00 46800 13:00:00 09:00:00 32400 09:00:00 select sec_to_time(time_to_sec(t)) from t1; sec_to_time(time_to_sec(t)) 09:00:00 13:00:00 19:38:34 13:00:00 09:00:00 09:00:00 13:00:00 13:00:00 13:00:00 09:00:00 drop table t1; CREATE TABLE t1 (t TIME); INSERT INTO t1 VALUES (+10), (+10.0), (+10e0); INSERT INTO t1 VALUES (-10), (-10.0), (-10e0); SELECT * FROM t1; t 00:00:10 00:00:10 00:00:10 -00:00:10 -00:00:10 -00:00:10 DROP TABLE t1; SELECT CAST(235959.123456 AS TIME); CAST(235959.123456 AS TIME) 23:59:59 SELECT CAST(0.235959123456e+6 AS TIME); CAST(0.235959123456e+6 AS TIME) 23:59:59 SELECT CAST(235959123456e-6 AS TIME); CAST(235959123456e-6 AS TIME) 23:59:59 SELECT CAST(235959.1234567 AS TIME); CAST(235959.1234567 AS TIME) 23:59:59 SELECT CAST(0.2359591234567e6 AS TIME); CAST(0.2359591234567e6 AS TIME) 23:59:59 SELECT CAST(0.2359591234567e+30 AS TIME); CAST(0.2359591234567e+30 AS TIME) NULL Warnings: Warning 1292 Truncated incorrect time value: '2.359591234567e29' End of 4.1 tests select cast('100:55:50' as time) < cast('24:00:00' as time); cast('100:55:50' as time) < cast('24:00:00' as time) 0 select cast('100:55:50' as time) < cast('024:00:00' as time); cast('100:55:50' as time) < cast('024:00:00' as time) 0 select cast('300:55:50' as time) < cast('240:00:00' as time); cast('300:55:50' as time) < cast('240:00:00' as time) 0 select cast('100:55:50' as time) > cast('24:00:00' as time); cast('100:55:50' as time) > cast('24:00:00' as time) 1 select cast('100:55:50' as time) > cast('024:00:00' as time); cast('100:55:50' as time) > cast('024:00:00' as time) 1 select cast('300:55:50' as time) > cast('240:00:00' as time); cast('300:55:50' as time) > cast('240:00:00' as time) 1 create table t1 (f1 time); insert into t1 values ('24:00:00'); select cast('24:00:00' as time) = (select f1 from t1); cast('24:00:00' as time) = (select f1 from t1) 1 drop table t1; create table t1(f1 time, f2 time); insert into t1 values('20:00:00','150:00:00'); select 1 from t1 where cast('100:00:00' as time) between f1 and f2; 1 1 drop table t1; CREATE TABLE t1 ( f2 date NOT NULL, f3 int(11) unsigned NOT NULL default '0', PRIMARY KEY (f3, f2) ); insert into t1 values('2007-07-01', 1); insert into t1 values('2007-07-01', 2); insert into t1 values('2007-07-02', 1); insert into t1 values('2007-07-02', 2); SELECT sum(f3) FROM t1 where f2='2007-07-01 00:00:00' group by f2; sum(f3) 3 drop table t1; # # Bug #44792: valgrind warning when casting from time to time # CREATE TABLE t1 (c TIME); INSERT INTO t1 VALUES ('0:00:00'); SELECT CAST(c AS TIME) FROM t1; CAST(c AS TIME) 00:00:00 DROP TABLE t1; End of 5.0 tests # # Bug#53942 valgrind warnings with timestamp() function and incomplete datetime values # SET @@timestamp=UNIX_TIMESTAMP('2001-01-01 01:00:00'); CREATE TABLE t1(f1 TIME); INSERT INTO t1 VALUES ('23:38:57'); SELECT TIMESTAMP(f1,'1') FROM t1; TIMESTAMP(f1,'1') 2001-01-01 23:38:58 DROP TABLE t1; SET @@timestamp=default; End of 5.1 tests CREATE TABLE t1 (f1 TIME); INSERT INTO t1 VALUES ('24:00:00'); SELECT '24:00:00' = (SELECT f1 FROM t1); '24:00:00' = (SELECT f1 FROM t1) 1 SELECT CAST('24:00:00' AS TIME) = (SELECT f1 FROM t1); CAST('24:00:00' AS TIME) = (SELECT f1 FROM t1) 1 SELECT CAST('-24:00:00' AS TIME) = (SELECT f1 FROM t1); CAST('-24:00:00' AS TIME) = (SELECT f1 FROM t1) 0 TRUNCATE t1; INSERT INTO t1 VALUES ('-24:00:00'); SELECT CAST('24:00:00' AS TIME) = (SELECT f1 FROM t1); CAST('24:00:00' AS TIME) = (SELECT f1 FROM t1) 0 SELECT CAST('-24:00:00' AS TIME) = (SELECT f1 FROM t1); CAST('-24:00:00' AS TIME) = (SELECT f1 FROM t1) 1 SELECT '-24:00:00' = (SELECT f1 FROM t1); '-24:00:00' = (SELECT f1 FROM t1) 1 DROP TABLE t1; # # Start of 5.6 tests # # # WL#946 Testing <=> operator with TIME # CREATE TABLE t1 (a TIME); INSERT INTO t1 VALUES ('20:00:00'),('19:20:30'); SELECT * FROM t1 WHERE a<=>'19:20:30'; a 19:20:30 SELECT * FROM t1 WHERE a<=>TIME'19:20:30'; a 19:20:30 SELECT * FROM t1 WHERE a<=>192030; a 19:20:30 DROP TABLE t1; # # WL#946: Testing rounding # CREATE TABLE t1 (a TIME); INSERT INTO t1 VALUES ('10:10:10.9999994'), ('10:10:10.9999995'); INSERT INTO t1 VALUES (101010.9999994), (101010.9999995); SELECT * FROM t1; a 10:10:11 10:10:11 10:10:11 10:10:11 DROP TABLE t1; # # Before WL#946 TIME did not reject too big negative minutes/seconds # CREATE TABLE t1 (a TIME); INSERT INTO t1 VALUES ('-10:60:59'), ('-10:59:60'), (-106059), (-105960); Warnings: Warning 1264 Out of range value for column 'a' at row 1 Warning 1264 Out of range value for column 'a' at row 2 Warning 1264 Out of range value for column 'a' at row 3 Warning 1264 Out of range value for column 'a' at row 4 SELECT * FROM t1; a 00:00:00 00:00:00 00:00:00 00:00:00 DROP TABLE t1; # # WL#946 Make sure case from number to TIME properly handles # too big negative minutes/secons # CREATE TABLE t1 (a INT); INSERT INTO t1 VALUES (-106059), (-105960); SELECT CAST(a AS TIME) FROM t1; CAST(a AS TIME) NULL NULL Warnings: Warning 1292 Truncated incorrect time value: '-106059' Warning 1292 Truncated incorrect time value: '-105960' DROP TABLE t1; # # WL#946 Checking function TIME() # SELECT TIME('1000009:10:10'); TIME('1000009:10:10') 838:59:59 Warnings: Warning 1292 Truncated incorrect time value: '1000009:10:10' SELECT TIME('1000009:10:10.1999999999999'); TIME('1000009:10:10.1999999999999') 838:59:59.000000 Warnings: Warning 1292 Truncated incorrect time value: '1000009:10:10.1999999999999' SELECT TIME('10000090:10:10'); TIME('10000090:10:10') 838:59:59 Warnings: Warning 1292 Truncated incorrect time value: '10000090:10:10' SELECT TIME('10000090:10:10.1999999999999'); TIME('10000090:10:10.1999999999999') 838:59:59.000000 Warnings: Warning 1292 Truncated incorrect time value: '10000090:10:10.1999999999999' SELECT TIME('100000900:10:10'); TIME('100000900:10:10') 838:59:59 Warnings: Warning 1292 Truncated incorrect time value: '100000900:10:10' SELECT TIME('100000900:10:10.1999999999999'); TIME('100000900:10:10.1999999999999') 838:59:59.000000 Warnings: Warning 1292 Truncated incorrect time value: '100000900:10:10.1999999999999' SELECT TIME('1000009000:10:10'); TIME('1000009000:10:10') 838:59:59 Warnings: Warning 1292 Truncated incorrect time value: '1000009000:10:10' SELECT TIME('1000009000:10:10.1999999999999'); TIME('1000009000:10:10.1999999999999') 838:59:59.000000 Warnings: Warning 1292 Truncated incorrect time value: '1000009000:10:10.1999999999999' SELECT TIME('10000090000:10:10'); TIME('10000090000:10:10') NULL Warnings: Warning 1292 Truncated incorrect time value: '10000090000:10:10' SELECT TIME('10000090000:10:10.1999999999999'); TIME('10000090000:10:10.1999999999999') NULL Warnings: Warning 1292 Truncated incorrect time value: '10000090000:10:10.1999999999999' # # Checking Item_func_if::val_str with TIME arguments # SELECT CAST(IF(1, TIME'00:00:00',TIME'00:00:00') AS CHAR); CAST(IF(1, TIME'00:00:00',TIME'00:00:00') AS CHAR) 00:00:00 # # Checking Item_func_case::val_str with TIME arguments # SELECT CAST(CASE WHEN 1 THEN TIME'00:00:00' ELSE TIME'00:00:00' END AS CHAR); CAST(CASE WHEN 1 THEN TIME'00:00:00' ELSE TIME'00:00:00' END AS CHAR) 00:00:00 # # Testing CASE with TIME type without a found item # SELECT CAST(CASE WHEN 0 THEN '01:01:01' END AS TIME); CAST(CASE WHEN 0 THEN '01:01:01' END AS TIME) NULL SELECT CAST(CASE WHEN 0 THEN TIME'01:01:01' END AS TIME); CAST(CASE WHEN 0 THEN TIME'01:01:01' END AS TIME) NULL # # Testing COALESCE with TIME type without a found item # SELECT COALESCE(TIME(NULL)); COALESCE(TIME(NULL)) NULL # # Testing TIME field with NULL value with NOT IN # CREATE TABLE t1 (a TIME); INSERT INTO t1 VALUES (NULL); SELECT * FROM t1 WHERE a NOT IN (TIME'20:20:20',TIME'10:10:10'); a DROP TABLE t1; # # Testing Item_func_numhybrid::val_int when TIME type # CREATE TABLE t1 (a TIME); INSERT INTO t1 VALUES ('10:10:10'); SELECT CAST(COALESCE(a,a) AS SIGNED) FROM t1; CAST(COALESCE(a,a) AS SIGNED) 101010 DROP TABLE t1; # # Testing Item_func_numhybrid::val_decimal when TIME type # CREATE TABLE t1 (a TIME); INSERT INTO t1 VALUES ('10:10:10'); SELECT CAST(COALESCE(a,a) AS DECIMAL(23,6)) FROM t1; CAST(COALESCE(a,a) AS DECIMAL(23,6)) 101010.000000 DROP TABLE t1; # # Testing Item_func_numhybrid::get_time when non-temporal type # SELECT CAST(COALESCE(10,20) AS TIME); CAST(COALESCE(10,20) AS TIME) 00:00:10 # # Testing Item_func_min_max::get_time when DATE type and NULL # SELECT CAST(LEAST(DATE(NULL), DATE(NULL)) AS TIME); CAST(LEAST(DATE(NULL), DATE(NULL)) AS TIME) NULL # # Testing Item_func_min_max::get_time with non-temporal arguments # SELECT CAST(LEAST(111111,222222) AS TIME); CAST(LEAST(111111,222222) AS TIME) 11:11:11 # # Item::get_time_from_numeric # SELECT CAST(SUM(0) AS TIME); CAST(SUM(0) AS TIME) 00:00:00 SELECT CAST(SUM(0 + 0e0) AS TIME); CAST(SUM(0 + 0e0) AS TIME) 00:00:00 SET timestamp=1322115328; SELECT CAST(UNIX_TIMESTAMP() AS TIME); CAST(UNIX_TIMESTAMP() AS TIME) NULL Warnings: Warning 1292 Truncated incorrect time value: '1322115328' SET timestamp=default; # # Item::get_time_from_non_temporal # SELECT TIME(154559.616 + 0e0); TIME(154559.616 + 0e0) 15:45:59.616000 # # Item_name_const::get_time # SELECT TIME(NAME_CONST('a', 0)); TIME(NAME_CONST('a', 0)) 00:00:00 # # Item_cache_datetime::get_time # CREATE TABLE t1 (a DATE); INSERT INTO t1 VALUES (0); SELECT TIME(MIN(a)) FROM t1; TIME(MIN(a)) 00:00:00 DROP TABLE t1; # # Bug#13623473 "MISSING ROWS ON SELECT AND JOIN WITH # TIME/DATETIME COMPARE" # # Systematic testing of ref access and range scan SET TIMESTAMP=UNIX_TIMESTAMP('2012-01-31 10:14:35'); CREATE TABLE t1 (col_time_key TIME, KEY(col_time_key)) ENGINE=InnoDB; INSERT INTO t1 VALUES ('00:00:00'),('-24:00:00'),('-48:00:00'),('24:00:00'),('48:00:00'); CREATE TABLE t2 (col_datetime_key DATETIME, KEY(col_datetime_key)) ENGINE=InnoDB; INSERT INTO t2 SELECT * FROM t1; ANALYZE TABLE t1; ANALYZE TABLE t2; EXPLAIN EXTENDED SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_time_key = col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 20.00 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` IGNORE INDEX (`col_time_key`) straight_join `test`.`t2` IGNORE INDEX (`col_datetime_key`) where (`test`.`t1`.`col_time_key` = `test`.`t2`.`col_datetime_key`) SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_time_key = col_datetime_key; col_time_key col_datetime_key -24:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-29 00:00:00 00:00:00 2012-01-31 00:00:00 24:00:00 2012-02-01 00:00:00 48:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_datetime_key = col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 20.00 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` IGNORE INDEX (`col_time_key`) straight_join `test`.`t2` IGNORE INDEX (`col_datetime_key`) where (`test`.`t2`.`col_datetime_key` = `test`.`t1`.`col_time_key`) SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_datetime_key = col_time_key; col_time_key col_datetime_key -24:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-29 00:00:00 00:00:00 2012-01-31 00:00:00 24:00:00 2012-02-01 00:00:00 48:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_time_key = col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 100.00 Using where 1 SIMPLE t2 NULL ref col_datetime_key col_datetime_key 6 test.t1.col_time_key 1 100.00 Using where; Using index Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` IGNORE INDEX (`col_time_key`) straight_join `test`.`t2` FORCE INDEX (`col_datetime_key`) where (`test`.`t1`.`col_time_key` = `test`.`t2`.`col_datetime_key`) SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_time_key = col_datetime_key; col_time_key col_datetime_key -24:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-29 00:00:00 00:00:00 2012-01-31 00:00:00 24:00:00 2012-02-01 00:00:00 48:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_datetime_key = col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 100.00 Using where 1 SIMPLE t2 NULL ref col_datetime_key col_datetime_key 6 test.t1.col_time_key 1 100.00 Using where; Using index Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` IGNORE INDEX (`col_time_key`) straight_join `test`.`t2` FORCE INDEX (`col_datetime_key`) where (`test`.`t2`.`col_datetime_key` = `test`.`t1`.`col_time_key`) SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_datetime_key = col_time_key; col_time_key col_datetime_key -24:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-29 00:00:00 00:00:00 2012-01-31 00:00:00 24:00:00 2012-02-01 00:00:00 48:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_time_key = col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 100.00 Using index 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 20.00 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Warning 1739 Cannot use ref access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` FORCE INDEX (`col_time_key`) straight_join `test`.`t2` IGNORE INDEX (`col_datetime_key`) where (`test`.`t1`.`col_time_key` = `test`.`t2`.`col_datetime_key`) SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_time_key = col_datetime_key; col_time_key col_datetime_key -24:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-29 00:00:00 00:00:00 2012-01-31 00:00:00 24:00:00 2012-02-01 00:00:00 48:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_datetime_key = col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 100.00 Using index 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 20.00 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Warning 1739 Cannot use ref access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` FORCE INDEX (`col_time_key`) straight_join `test`.`t2` IGNORE INDEX (`col_datetime_key`) where (`test`.`t2`.`col_datetime_key` = `test`.`t1`.`col_time_key`) SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_datetime_key = col_time_key; col_time_key col_datetime_key -24:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-29 00:00:00 00:00:00 2012-01-31 00:00:00 24:00:00 2012-02-01 00:00:00 48:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_time_key = col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 100.00 Using where; Using index 1 SIMPLE t2 NULL ref col_datetime_key col_datetime_key 6 test.t1.col_time_key 1 100.00 Using where; Using index Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Warning 1739 Cannot use ref access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` FORCE INDEX (`col_time_key`) straight_join `test`.`t2` FORCE INDEX (`col_datetime_key`) where (`test`.`t1`.`col_time_key` = `test`.`t2`.`col_datetime_key`) SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_time_key = col_datetime_key; col_time_key col_datetime_key -24:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-29 00:00:00 00:00:00 2012-01-31 00:00:00 24:00:00 2012-02-01 00:00:00 48:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_datetime_key = col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 100.00 Using where; Using index 1 SIMPLE t2 NULL ref col_datetime_key col_datetime_key 6 test.t1.col_time_key 1 100.00 Using where; Using index Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Warning 1739 Cannot use ref access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` FORCE INDEX (`col_time_key`) straight_join `test`.`t2` FORCE INDEX (`col_datetime_key`) where (`test`.`t2`.`col_datetime_key` = `test`.`t1`.`col_time_key`) SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_datetime_key = col_time_key; col_time_key col_datetime_key -24:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-29 00:00:00 00:00:00 2012-01-31 00:00:00 24:00:00 2012-02-01 00:00:00 48:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_time_key = col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 20.00 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` IGNORE INDEX (`col_datetime_key`) straight_join `test`.`t1` IGNORE INDEX (`col_time_key`) where (`test`.`t1`.`col_time_key` = `test`.`t2`.`col_datetime_key`) SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_time_key = col_datetime_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -48:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-31 00:00:00 00:00:00 2012-02-01 00:00:00 24:00:00 2012-02-02 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_datetime_key = col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 20.00 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` IGNORE INDEX (`col_datetime_key`) straight_join `test`.`t1` IGNORE INDEX (`col_time_key`) where (`test`.`t2`.`col_datetime_key` = `test`.`t1`.`col_time_key`) SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_datetime_key = col_time_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -48:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-31 00:00:00 00:00:00 2012-02-01 00:00:00 24:00:00 2012-02-02 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_time_key = col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 20.00 Using where; Using index; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Warning 1739 Cannot use ref access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Warning 1739 Cannot use range access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` IGNORE INDEX (`col_datetime_key`) straight_join `test`.`t1` FORCE INDEX (`col_time_key`) where (`test`.`t1`.`col_time_key` = `test`.`t2`.`col_datetime_key`) SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_time_key = col_datetime_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -48:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-31 00:00:00 00:00:00 2012-02-01 00:00:00 24:00:00 2012-02-02 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_datetime_key = col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 20.00 Using where; Using index; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Warning 1739 Cannot use ref access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Warning 1739 Cannot use range access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` IGNORE INDEX (`col_datetime_key`) straight_join `test`.`t1` FORCE INDEX (`col_time_key`) where (`test`.`t2`.`col_datetime_key` = `test`.`t1`.`col_time_key`) SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_datetime_key = col_time_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -48:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-31 00:00:00 00:00:00 2012-02-01 00:00:00 24:00:00 2012-02-02 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_time_key = col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL index col_datetime_key col_datetime_key 6 NULL 5 100.00 Using index 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 20.00 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` FORCE INDEX (`col_datetime_key`) straight_join `test`.`t1` IGNORE INDEX (`col_time_key`) where (`test`.`t1`.`col_time_key` = `test`.`t2`.`col_datetime_key`) SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_time_key = col_datetime_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -48:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-31 00:00:00 00:00:00 2012-02-01 00:00:00 24:00:00 2012-02-02 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_datetime_key = col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL index col_datetime_key col_datetime_key 6 NULL 5 100.00 Using index 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 20.00 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` FORCE INDEX (`col_datetime_key`) straight_join `test`.`t1` IGNORE INDEX (`col_time_key`) where (`test`.`t2`.`col_datetime_key` = `test`.`t1`.`col_time_key`) SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_datetime_key = col_time_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -48:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-31 00:00:00 00:00:00 2012-02-01 00:00:00 24:00:00 2012-02-02 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_time_key = col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL index col_datetime_key col_datetime_key 6 NULL 5 100.00 Using index 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 20.00 Using where; Using index; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Warning 1739 Cannot use ref access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Warning 1739 Cannot use range access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` FORCE INDEX (`col_datetime_key`) straight_join `test`.`t1` FORCE INDEX (`col_time_key`) where (`test`.`t1`.`col_time_key` = `test`.`t2`.`col_datetime_key`) SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_time_key = col_datetime_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -48:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-31 00:00:00 00:00:00 2012-02-01 00:00:00 24:00:00 2012-02-02 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_datetime_key = col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL index col_datetime_key col_datetime_key 6 NULL 5 100.00 Using index 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 20.00 Using where; Using index; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Warning 1739 Cannot use ref access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Warning 1739 Cannot use range access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` FORCE INDEX (`col_datetime_key`) straight_join `test`.`t1` FORCE INDEX (`col_time_key`) where (`test`.`t2`.`col_datetime_key` = `test`.`t1`.`col_time_key`) SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_datetime_key = col_time_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -48:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-31 00:00:00 00:00:00 2012-02-01 00:00:00 24:00:00 2012-02-02 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_time_key >= col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` IGNORE INDEX (`col_time_key`) straight_join `test`.`t2` IGNORE INDEX (`col_datetime_key`) where (`test`.`t1`.`col_time_key` >= `test`.`t2`.`col_datetime_key`) SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_time_key >= col_datetime_key; col_time_key col_datetime_key -24:00:00 2012-01-29 00:00:00 -24:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 00:00:00 2012-01-30 00:00:00 00:00:00 2012-01-31 00:00:00 24:00:00 2012-01-29 00:00:00 24:00:00 2012-01-30 00:00:00 24:00:00 2012-01-31 00:00:00 24:00:00 2012-02-01 00:00:00 48:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 48:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_datetime_key >= col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` IGNORE INDEX (`col_time_key`) straight_join `test`.`t2` IGNORE INDEX (`col_datetime_key`) where (`test`.`t2`.`col_datetime_key` >= `test`.`t1`.`col_time_key`) SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_datetime_key >= col_time_key; col_time_key col_datetime_key -24:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-31 00:00:00 -24:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-01-29 00:00:00 -48:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -48:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-01-31 00:00:00 00:00:00 2012-02-01 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 2012-02-01 00:00:00 24:00:00 2012-02-02 00:00:00 48:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_time_key >= col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t2 NULL ALL col_datetime_key NULL NULL NULL 5 33.33 Range checked for each record (index map: 0x1) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` IGNORE INDEX (`col_time_key`) straight_join `test`.`t2` FORCE INDEX (`col_datetime_key`) where (`test`.`t1`.`col_time_key` >= `test`.`t2`.`col_datetime_key`) SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_time_key >= col_datetime_key; col_time_key col_datetime_key -24:00:00 2012-01-29 00:00:00 -24:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 00:00:00 2012-01-30 00:00:00 00:00:00 2012-01-31 00:00:00 24:00:00 2012-01-29 00:00:00 24:00:00 2012-01-30 00:00:00 24:00:00 2012-01-31 00:00:00 24:00:00 2012-02-01 00:00:00 48:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 48:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_datetime_key >= col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t2 NULL ALL col_datetime_key NULL NULL NULL 5 33.33 Range checked for each record (index map: 0x1) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` IGNORE INDEX (`col_time_key`) straight_join `test`.`t2` FORCE INDEX (`col_datetime_key`) where (`test`.`t2`.`col_datetime_key` >= `test`.`t1`.`col_time_key`) SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_datetime_key >= col_time_key; col_time_key col_datetime_key -24:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-31 00:00:00 -24:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-01-29 00:00:00 -48:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -48:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-01-31 00:00:00 00:00:00 2012-02-01 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 2012-02-01 00:00:00 24:00:00 2012-02-02 00:00:00 48:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_time_key >= col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 100.00 Using index 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` FORCE INDEX (`col_time_key`) straight_join `test`.`t2` IGNORE INDEX (`col_datetime_key`) where (`test`.`t1`.`col_time_key` >= `test`.`t2`.`col_datetime_key`) SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_time_key >= col_datetime_key; col_time_key col_datetime_key -24:00:00 2012-01-29 00:00:00 -24:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 00:00:00 2012-01-30 00:00:00 00:00:00 2012-01-31 00:00:00 24:00:00 2012-01-29 00:00:00 24:00:00 2012-01-30 00:00:00 24:00:00 2012-01-31 00:00:00 24:00:00 2012-02-01 00:00:00 48:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 48:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_datetime_key >= col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 100.00 Using index 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` FORCE INDEX (`col_time_key`) straight_join `test`.`t2` IGNORE INDEX (`col_datetime_key`) where (`test`.`t2`.`col_datetime_key` >= `test`.`t1`.`col_time_key`) SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_datetime_key >= col_time_key; col_time_key col_datetime_key -24:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-31 00:00:00 -24:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-01-29 00:00:00 -48:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -48:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-01-31 00:00:00 00:00:00 2012-02-01 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 2012-02-01 00:00:00 24:00:00 2012-02-02 00:00:00 48:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_time_key >= col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 100.00 Using index 1 SIMPLE t2 NULL ALL col_datetime_key NULL NULL NULL 5 33.33 Range checked for each record (index map: 0x1) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` FORCE INDEX (`col_time_key`) straight_join `test`.`t2` FORCE INDEX (`col_datetime_key`) where (`test`.`t1`.`col_time_key` >= `test`.`t2`.`col_datetime_key`) SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_time_key >= col_datetime_key; col_time_key col_datetime_key -24:00:00 2012-01-29 00:00:00 -24:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 00:00:00 2012-01-30 00:00:00 00:00:00 2012-01-31 00:00:00 24:00:00 2012-01-29 00:00:00 24:00:00 2012-01-30 00:00:00 24:00:00 2012-01-31 00:00:00 24:00:00 2012-02-01 00:00:00 48:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 48:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_datetime_key >= col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 100.00 Using index 1 SIMPLE t2 NULL ALL col_datetime_key NULL NULL NULL 5 33.33 Range checked for each record (index map: 0x1) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` FORCE INDEX (`col_time_key`) straight_join `test`.`t2` FORCE INDEX (`col_datetime_key`) where (`test`.`t2`.`col_datetime_key` >= `test`.`t1`.`col_time_key`) SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_datetime_key >= col_time_key; col_time_key col_datetime_key -24:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-31 00:00:00 -24:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-01-29 00:00:00 -48:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -48:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-01-31 00:00:00 00:00:00 2012-02-01 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 2012-02-01 00:00:00 24:00:00 2012-02-02 00:00:00 48:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_time_key >= col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` IGNORE INDEX (`col_datetime_key`) straight_join `test`.`t1` IGNORE INDEX (`col_time_key`) where (`test`.`t1`.`col_time_key` >= `test`.`t2`.`col_datetime_key`) SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_time_key >= col_datetime_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -24:00:00 2012-01-29 00:00:00 -48:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 24:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-30 00:00:00 00:00:00 2012-01-30 00:00:00 24:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 00:00:00 2012-01-31 00:00:00 24:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 24:00:00 2012-02-01 00:00:00 48:00:00 2012-02-02 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_datetime_key >= col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` IGNORE INDEX (`col_datetime_key`) straight_join `test`.`t1` IGNORE INDEX (`col_time_key`) where (`test`.`t2`.`col_datetime_key` >= `test`.`t1`.`col_time_key`) SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_datetime_key >= col_time_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -48:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -24:00:00 2012-01-31 00:00:00 -48:00:00 2012-01-31 00:00:00 00:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-01 00:00:00 00:00:00 2012-02-01 00:00:00 24:00:00 2012-02-02 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 2012-02-02 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_time_key >= col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 33.33 Using where; Using index; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Warning 1739 Cannot use range access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` IGNORE INDEX (`col_datetime_key`) straight_join `test`.`t1` FORCE INDEX (`col_time_key`) where (`test`.`t1`.`col_time_key` >= `test`.`t2`.`col_datetime_key`) SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_time_key >= col_datetime_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -24:00:00 2012-01-29 00:00:00 -48:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 24:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-30 00:00:00 00:00:00 2012-01-30 00:00:00 24:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 00:00:00 2012-01-31 00:00:00 24:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 24:00:00 2012-02-01 00:00:00 48:00:00 2012-02-02 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_datetime_key >= col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 33.33 Using where; Using index; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Warning 1739 Cannot use range access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` IGNORE INDEX (`col_datetime_key`) straight_join `test`.`t1` FORCE INDEX (`col_time_key`) where (`test`.`t2`.`col_datetime_key` >= `test`.`t1`.`col_time_key`) SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_datetime_key >= col_time_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -48:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -24:00:00 2012-01-31 00:00:00 -48:00:00 2012-01-31 00:00:00 00:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-01 00:00:00 00:00:00 2012-02-01 00:00:00 24:00:00 2012-02-02 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 2012-02-02 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_time_key >= col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL index col_datetime_key col_datetime_key 6 NULL 5 100.00 Using index 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` FORCE INDEX (`col_datetime_key`) straight_join `test`.`t1` IGNORE INDEX (`col_time_key`) where (`test`.`t1`.`col_time_key` >= `test`.`t2`.`col_datetime_key`) SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_time_key >= col_datetime_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -24:00:00 2012-01-29 00:00:00 -48:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 24:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-30 00:00:00 00:00:00 2012-01-30 00:00:00 24:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 00:00:00 2012-01-31 00:00:00 24:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 24:00:00 2012-02-01 00:00:00 48:00:00 2012-02-02 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_datetime_key >= col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL index col_datetime_key col_datetime_key 6 NULL 5 100.00 Using index 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` FORCE INDEX (`col_datetime_key`) straight_join `test`.`t1` IGNORE INDEX (`col_time_key`) where (`test`.`t2`.`col_datetime_key` >= `test`.`t1`.`col_time_key`) SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_datetime_key >= col_time_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -48:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -24:00:00 2012-01-31 00:00:00 -48:00:00 2012-01-31 00:00:00 00:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-01 00:00:00 00:00:00 2012-02-01 00:00:00 24:00:00 2012-02-02 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 2012-02-02 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_time_key >= col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL index col_datetime_key col_datetime_key 6 NULL 5 100.00 Using index 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 33.33 Using where; Using index; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Warning 1739 Cannot use range access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` FORCE INDEX (`col_datetime_key`) straight_join `test`.`t1` FORCE INDEX (`col_time_key`) where (`test`.`t1`.`col_time_key` >= `test`.`t2`.`col_datetime_key`) SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_time_key >= col_datetime_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -24:00:00 2012-01-29 00:00:00 -48:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 24:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-30 00:00:00 00:00:00 2012-01-30 00:00:00 24:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 00:00:00 2012-01-31 00:00:00 24:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 24:00:00 2012-02-01 00:00:00 48:00:00 2012-02-02 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_datetime_key >= col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL index col_datetime_key col_datetime_key 6 NULL 5 100.00 Using index 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 33.33 Using where; Using index; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Warning 1739 Cannot use range access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` FORCE INDEX (`col_datetime_key`) straight_join `test`.`t1` FORCE INDEX (`col_time_key`) where (`test`.`t2`.`col_datetime_key` >= `test`.`t1`.`col_time_key`) SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_datetime_key >= col_time_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -48:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -24:00:00 2012-01-31 00:00:00 -48:00:00 2012-01-31 00:00:00 00:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-01 00:00:00 00:00:00 2012-02-01 00:00:00 24:00:00 2012-02-02 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 2012-02-02 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_time_key > col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` IGNORE INDEX (`col_time_key`) straight_join `test`.`t2` IGNORE INDEX (`col_datetime_key`) where (`test`.`t1`.`col_time_key` > `test`.`t2`.`col_datetime_key`) SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_time_key > col_datetime_key; col_time_key col_datetime_key -24:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 00:00:00 2012-01-30 00:00:00 24:00:00 2012-01-29 00:00:00 24:00:00 2012-01-30 00:00:00 24:00:00 2012-01-31 00:00:00 48:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_datetime_key > col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` IGNORE INDEX (`col_time_key`) straight_join `test`.`t2` IGNORE INDEX (`col_datetime_key`) where (`test`.`t2`.`col_datetime_key` > `test`.`t1`.`col_time_key`) SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_datetime_key > col_time_key; col_time_key col_datetime_key -24:00:00 2012-01-31 00:00:00 -24:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -48:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-02-01 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_time_key > col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t2 NULL ALL col_datetime_key NULL NULL NULL 5 33.33 Range checked for each record (index map: 0x1) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` IGNORE INDEX (`col_time_key`) straight_join `test`.`t2` FORCE INDEX (`col_datetime_key`) where (`test`.`t1`.`col_time_key` > `test`.`t2`.`col_datetime_key`) SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_time_key > col_datetime_key; col_time_key col_datetime_key -24:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 00:00:00 2012-01-30 00:00:00 24:00:00 2012-01-29 00:00:00 24:00:00 2012-01-30 00:00:00 24:00:00 2012-01-31 00:00:00 48:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_datetime_key > col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t2 NULL ALL col_datetime_key NULL NULL NULL 5 33.33 Range checked for each record (index map: 0x1) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` IGNORE INDEX (`col_time_key`) straight_join `test`.`t2` FORCE INDEX (`col_datetime_key`) where (`test`.`t2`.`col_datetime_key` > `test`.`t1`.`col_time_key`) SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_datetime_key > col_time_key; col_time_key col_datetime_key -24:00:00 2012-01-31 00:00:00 -24:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -48:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-02-01 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_time_key > col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 100.00 Using index 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` FORCE INDEX (`col_time_key`) straight_join `test`.`t2` IGNORE INDEX (`col_datetime_key`) where (`test`.`t1`.`col_time_key` > `test`.`t2`.`col_datetime_key`) SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_time_key > col_datetime_key; col_time_key col_datetime_key -24:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 00:00:00 2012-01-30 00:00:00 24:00:00 2012-01-29 00:00:00 24:00:00 2012-01-30 00:00:00 24:00:00 2012-01-31 00:00:00 48:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_datetime_key > col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 100.00 Using index 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` FORCE INDEX (`col_time_key`) straight_join `test`.`t2` IGNORE INDEX (`col_datetime_key`) where (`test`.`t2`.`col_datetime_key` > `test`.`t1`.`col_time_key`) SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_datetime_key > col_time_key; col_time_key col_datetime_key -24:00:00 2012-01-31 00:00:00 -24:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -48:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-02-01 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_time_key > col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 100.00 Using index 1 SIMPLE t2 NULL ALL col_datetime_key NULL NULL NULL 5 33.33 Range checked for each record (index map: 0x1) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` FORCE INDEX (`col_time_key`) straight_join `test`.`t2` FORCE INDEX (`col_datetime_key`) where (`test`.`t1`.`col_time_key` > `test`.`t2`.`col_datetime_key`) SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_time_key > col_datetime_key; col_time_key col_datetime_key -24:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 00:00:00 2012-01-30 00:00:00 24:00:00 2012-01-29 00:00:00 24:00:00 2012-01-30 00:00:00 24:00:00 2012-01-31 00:00:00 48:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_datetime_key > col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 100.00 Using index 1 SIMPLE t2 NULL ALL col_datetime_key NULL NULL NULL 5 33.33 Range checked for each record (index map: 0x1) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` FORCE INDEX (`col_time_key`) straight_join `test`.`t2` FORCE INDEX (`col_datetime_key`) where (`test`.`t2`.`col_datetime_key` > `test`.`t1`.`col_time_key`) SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_datetime_key > col_time_key; col_time_key col_datetime_key -24:00:00 2012-01-31 00:00:00 -24:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -48:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-02-01 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_time_key > col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` IGNORE INDEX (`col_datetime_key`) straight_join `test`.`t1` IGNORE INDEX (`col_time_key`) where (`test`.`t1`.`col_time_key` > `test`.`t2`.`col_datetime_key`) SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_time_key > col_datetime_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -24:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 24:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 00:00:00 2012-01-30 00:00:00 24:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 24:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_datetime_key > col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` IGNORE INDEX (`col_datetime_key`) straight_join `test`.`t1` IGNORE INDEX (`col_time_key`) where (`test`.`t2`.`col_datetime_key` > `test`.`t1`.`col_time_key`) SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_datetime_key > col_time_key; col_datetime_key col_time_key 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -24:00:00 2012-01-31 00:00:00 -48:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-01 00:00:00 00:00:00 2012-02-02 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 EXPLAIN EXTENDED SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_time_key > col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 33.33 Using where; Using index; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Warning 1739 Cannot use range access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` IGNORE INDEX (`col_datetime_key`) straight_join `test`.`t1` FORCE INDEX (`col_time_key`) where (`test`.`t1`.`col_time_key` > `test`.`t2`.`col_datetime_key`) SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_time_key > col_datetime_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -24:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 24:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 00:00:00 2012-01-30 00:00:00 24:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 24:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_datetime_key > col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 33.33 Using where; Using index; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Warning 1739 Cannot use range access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` IGNORE INDEX (`col_datetime_key`) straight_join `test`.`t1` FORCE INDEX (`col_time_key`) where (`test`.`t2`.`col_datetime_key` > `test`.`t1`.`col_time_key`) SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_datetime_key > col_time_key; col_datetime_key col_time_key 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -24:00:00 2012-01-31 00:00:00 -48:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-01 00:00:00 00:00:00 2012-02-02 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 EXPLAIN EXTENDED SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_time_key > col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL index col_datetime_key col_datetime_key 6 NULL 5 100.00 Using index 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` FORCE INDEX (`col_datetime_key`) straight_join `test`.`t1` IGNORE INDEX (`col_time_key`) where (`test`.`t1`.`col_time_key` > `test`.`t2`.`col_datetime_key`) SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_time_key > col_datetime_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -24:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 24:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 00:00:00 2012-01-30 00:00:00 24:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 24:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_datetime_key > col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL index col_datetime_key col_datetime_key 6 NULL 5 100.00 Using index 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` FORCE INDEX (`col_datetime_key`) straight_join `test`.`t1` IGNORE INDEX (`col_time_key`) where (`test`.`t2`.`col_datetime_key` > `test`.`t1`.`col_time_key`) SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_datetime_key > col_time_key; col_datetime_key col_time_key 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -24:00:00 2012-01-31 00:00:00 -48:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-01 00:00:00 00:00:00 2012-02-02 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 EXPLAIN EXTENDED SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_time_key > col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL index col_datetime_key col_datetime_key 6 NULL 5 100.00 Using index 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 33.33 Using where; Using index; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Warning 1739 Cannot use range access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` FORCE INDEX (`col_datetime_key`) straight_join `test`.`t1` FORCE INDEX (`col_time_key`) where (`test`.`t1`.`col_time_key` > `test`.`t2`.`col_datetime_key`) SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_time_key > col_datetime_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -24:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 24:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 00:00:00 2012-01-30 00:00:00 24:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 24:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_datetime_key > col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL index col_datetime_key col_datetime_key 6 NULL 5 100.00 Using index 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 33.33 Using where; Using index; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Warning 1739 Cannot use range access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` FORCE INDEX (`col_datetime_key`) straight_join `test`.`t1` FORCE INDEX (`col_time_key`) where (`test`.`t2`.`col_datetime_key` > `test`.`t1`.`col_time_key`) SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_datetime_key > col_time_key; col_datetime_key col_time_key 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -24:00:00 2012-01-31 00:00:00 -48:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-01 00:00:00 00:00:00 2012-02-02 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 EXPLAIN EXTENDED SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_time_key <= col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` IGNORE INDEX (`col_time_key`) straight_join `test`.`t2` IGNORE INDEX (`col_datetime_key`) where (`test`.`t1`.`col_time_key` <= `test`.`t2`.`col_datetime_key`) SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_time_key <= col_datetime_key; col_time_key col_datetime_key -24:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-31 00:00:00 -24:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-01-29 00:00:00 -48:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -48:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-01-31 00:00:00 00:00:00 2012-02-01 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 2012-02-01 00:00:00 24:00:00 2012-02-02 00:00:00 48:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_datetime_key <= col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` IGNORE INDEX (`col_time_key`) straight_join `test`.`t2` IGNORE INDEX (`col_datetime_key`) where (`test`.`t2`.`col_datetime_key` <= `test`.`t1`.`col_time_key`) SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_datetime_key <= col_time_key; col_time_key col_datetime_key -24:00:00 2012-01-29 00:00:00 -24:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 00:00:00 2012-01-30 00:00:00 00:00:00 2012-01-31 00:00:00 24:00:00 2012-01-29 00:00:00 24:00:00 2012-01-30 00:00:00 24:00:00 2012-01-31 00:00:00 24:00:00 2012-02-01 00:00:00 48:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 48:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_time_key <= col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t2 NULL ALL col_datetime_key NULL NULL NULL 5 33.33 Range checked for each record (index map: 0x1) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` IGNORE INDEX (`col_time_key`) straight_join `test`.`t2` FORCE INDEX (`col_datetime_key`) where (`test`.`t1`.`col_time_key` <= `test`.`t2`.`col_datetime_key`) SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_time_key <= col_datetime_key; col_time_key col_datetime_key -24:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-31 00:00:00 -24:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-01-29 00:00:00 -48:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -48:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-01-31 00:00:00 00:00:00 2012-02-01 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 2012-02-01 00:00:00 24:00:00 2012-02-02 00:00:00 48:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_datetime_key <= col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t2 NULL ALL col_datetime_key NULL NULL NULL 5 33.33 Range checked for each record (index map: 0x1) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` IGNORE INDEX (`col_time_key`) straight_join `test`.`t2` FORCE INDEX (`col_datetime_key`) where (`test`.`t2`.`col_datetime_key` <= `test`.`t1`.`col_time_key`) SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_datetime_key <= col_time_key; col_time_key col_datetime_key -24:00:00 2012-01-29 00:00:00 -24:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 00:00:00 2012-01-30 00:00:00 00:00:00 2012-01-31 00:00:00 24:00:00 2012-01-29 00:00:00 24:00:00 2012-01-30 00:00:00 24:00:00 2012-01-31 00:00:00 24:00:00 2012-02-01 00:00:00 48:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 48:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_time_key <= col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 100.00 Using index 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` FORCE INDEX (`col_time_key`) straight_join `test`.`t2` IGNORE INDEX (`col_datetime_key`) where (`test`.`t1`.`col_time_key` <= `test`.`t2`.`col_datetime_key`) SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_time_key <= col_datetime_key; col_time_key col_datetime_key -24:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-31 00:00:00 -24:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-01-29 00:00:00 -48:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -48:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-01-31 00:00:00 00:00:00 2012-02-01 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 2012-02-01 00:00:00 24:00:00 2012-02-02 00:00:00 48:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_datetime_key <= col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 100.00 Using index 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` FORCE INDEX (`col_time_key`) straight_join `test`.`t2` IGNORE INDEX (`col_datetime_key`) where (`test`.`t2`.`col_datetime_key` <= `test`.`t1`.`col_time_key`) SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_datetime_key <= col_time_key; col_time_key col_datetime_key -24:00:00 2012-01-29 00:00:00 -24:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 00:00:00 2012-01-30 00:00:00 00:00:00 2012-01-31 00:00:00 24:00:00 2012-01-29 00:00:00 24:00:00 2012-01-30 00:00:00 24:00:00 2012-01-31 00:00:00 24:00:00 2012-02-01 00:00:00 48:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 48:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_time_key <= col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 100.00 Using index 1 SIMPLE t2 NULL ALL col_datetime_key NULL NULL NULL 5 33.33 Range checked for each record (index map: 0x1) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` FORCE INDEX (`col_time_key`) straight_join `test`.`t2` FORCE INDEX (`col_datetime_key`) where (`test`.`t1`.`col_time_key` <= `test`.`t2`.`col_datetime_key`) SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_time_key <= col_datetime_key; col_time_key col_datetime_key -24:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-31 00:00:00 -24:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-01-29 00:00:00 -48:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -48:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-01-31 00:00:00 00:00:00 2012-02-01 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 2012-02-01 00:00:00 24:00:00 2012-02-02 00:00:00 48:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_datetime_key <= col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 100.00 Using index 1 SIMPLE t2 NULL ALL col_datetime_key NULL NULL NULL 5 33.33 Range checked for each record (index map: 0x1) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` FORCE INDEX (`col_time_key`) straight_join `test`.`t2` FORCE INDEX (`col_datetime_key`) where (`test`.`t2`.`col_datetime_key` <= `test`.`t1`.`col_time_key`) SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_datetime_key <= col_time_key; col_time_key col_datetime_key -24:00:00 2012-01-29 00:00:00 -24:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 00:00:00 2012-01-30 00:00:00 00:00:00 2012-01-31 00:00:00 24:00:00 2012-01-29 00:00:00 24:00:00 2012-01-30 00:00:00 24:00:00 2012-01-31 00:00:00 24:00:00 2012-02-01 00:00:00 48:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 48:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_time_key <= col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` IGNORE INDEX (`col_datetime_key`) straight_join `test`.`t1` IGNORE INDEX (`col_time_key`) where (`test`.`t1`.`col_time_key` <= `test`.`t2`.`col_datetime_key`) SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_time_key <= col_datetime_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -48:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -24:00:00 2012-01-31 00:00:00 -48:00:00 2012-01-31 00:00:00 00:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-01 00:00:00 00:00:00 2012-02-01 00:00:00 24:00:00 2012-02-02 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 2012-02-02 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_datetime_key <= col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` IGNORE INDEX (`col_datetime_key`) straight_join `test`.`t1` IGNORE INDEX (`col_time_key`) where (`test`.`t2`.`col_datetime_key` <= `test`.`t1`.`col_time_key`) SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_datetime_key <= col_time_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -24:00:00 2012-01-29 00:00:00 -48:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 24:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-30 00:00:00 00:00:00 2012-01-30 00:00:00 24:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 00:00:00 2012-01-31 00:00:00 24:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 24:00:00 2012-02-01 00:00:00 48:00:00 2012-02-02 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_time_key <= col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 33.33 Using where; Using index; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Warning 1739 Cannot use range access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` IGNORE INDEX (`col_datetime_key`) straight_join `test`.`t1` FORCE INDEX (`col_time_key`) where (`test`.`t1`.`col_time_key` <= `test`.`t2`.`col_datetime_key`) SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_time_key <= col_datetime_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -48:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -24:00:00 2012-01-31 00:00:00 -48:00:00 2012-01-31 00:00:00 00:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-01 00:00:00 00:00:00 2012-02-01 00:00:00 24:00:00 2012-02-02 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 2012-02-02 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_datetime_key <= col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 33.33 Using where; Using index; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Warning 1739 Cannot use range access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` IGNORE INDEX (`col_datetime_key`) straight_join `test`.`t1` FORCE INDEX (`col_time_key`) where (`test`.`t2`.`col_datetime_key` <= `test`.`t1`.`col_time_key`) SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_datetime_key <= col_time_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -24:00:00 2012-01-29 00:00:00 -48:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 24:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-30 00:00:00 00:00:00 2012-01-30 00:00:00 24:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 00:00:00 2012-01-31 00:00:00 24:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 24:00:00 2012-02-01 00:00:00 48:00:00 2012-02-02 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_time_key <= col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL index col_datetime_key col_datetime_key 6 NULL 5 100.00 Using index 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` FORCE INDEX (`col_datetime_key`) straight_join `test`.`t1` IGNORE INDEX (`col_time_key`) where (`test`.`t1`.`col_time_key` <= `test`.`t2`.`col_datetime_key`) SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_time_key <= col_datetime_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -48:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -24:00:00 2012-01-31 00:00:00 -48:00:00 2012-01-31 00:00:00 00:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-01 00:00:00 00:00:00 2012-02-01 00:00:00 24:00:00 2012-02-02 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 2012-02-02 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_datetime_key <= col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL index col_datetime_key col_datetime_key 6 NULL 5 100.00 Using index 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` FORCE INDEX (`col_datetime_key`) straight_join `test`.`t1` IGNORE INDEX (`col_time_key`) where (`test`.`t2`.`col_datetime_key` <= `test`.`t1`.`col_time_key`) SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_datetime_key <= col_time_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -24:00:00 2012-01-29 00:00:00 -48:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 24:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-30 00:00:00 00:00:00 2012-01-30 00:00:00 24:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 00:00:00 2012-01-31 00:00:00 24:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 24:00:00 2012-02-01 00:00:00 48:00:00 2012-02-02 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_time_key <= col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL index col_datetime_key col_datetime_key 6 NULL 5 100.00 Using index 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 33.33 Using where; Using index; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Warning 1739 Cannot use range access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` FORCE INDEX (`col_datetime_key`) straight_join `test`.`t1` FORCE INDEX (`col_time_key`) where (`test`.`t1`.`col_time_key` <= `test`.`t2`.`col_datetime_key`) SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_time_key <= col_datetime_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -48:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -24:00:00 2012-01-31 00:00:00 -48:00:00 2012-01-31 00:00:00 00:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-01 00:00:00 00:00:00 2012-02-01 00:00:00 24:00:00 2012-02-02 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 2012-02-02 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_datetime_key <= col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL index col_datetime_key col_datetime_key 6 NULL 5 100.00 Using index 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 33.33 Using where; Using index; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Warning 1739 Cannot use range access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` FORCE INDEX (`col_datetime_key`) straight_join `test`.`t1` FORCE INDEX (`col_time_key`) where (`test`.`t2`.`col_datetime_key` <= `test`.`t1`.`col_time_key`) SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_datetime_key <= col_time_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -24:00:00 2012-01-29 00:00:00 -48:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 24:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 -24:00:00 2012-01-30 00:00:00 00:00:00 2012-01-30 00:00:00 24:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 00:00:00 2012-01-31 00:00:00 24:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 24:00:00 2012-02-01 00:00:00 48:00:00 2012-02-02 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_time_key < col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` IGNORE INDEX (`col_time_key`) straight_join `test`.`t2` IGNORE INDEX (`col_datetime_key`) where (`test`.`t1`.`col_time_key` < `test`.`t2`.`col_datetime_key`) SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_time_key < col_datetime_key; col_time_key col_datetime_key -24:00:00 2012-01-31 00:00:00 -24:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -48:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-02-01 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_datetime_key < col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` IGNORE INDEX (`col_time_key`) straight_join `test`.`t2` IGNORE INDEX (`col_datetime_key`) where (`test`.`t2`.`col_datetime_key` < `test`.`t1`.`col_time_key`) SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_datetime_key < col_time_key; col_time_key col_datetime_key -24:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 00:00:00 2012-01-30 00:00:00 24:00:00 2012-01-29 00:00:00 24:00:00 2012-01-30 00:00:00 24:00:00 2012-01-31 00:00:00 48:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_time_key < col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t2 NULL ALL col_datetime_key NULL NULL NULL 5 33.33 Range checked for each record (index map: 0x1) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` IGNORE INDEX (`col_time_key`) straight_join `test`.`t2` FORCE INDEX (`col_datetime_key`) where (`test`.`t1`.`col_time_key` < `test`.`t2`.`col_datetime_key`) SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_time_key < col_datetime_key; col_time_key col_datetime_key -24:00:00 2012-01-31 00:00:00 -24:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -48:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-02-01 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_datetime_key < col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t2 NULL ALL col_datetime_key NULL NULL NULL 5 33.33 Range checked for each record (index map: 0x1) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` IGNORE INDEX (`col_time_key`) straight_join `test`.`t2` FORCE INDEX (`col_datetime_key`) where (`test`.`t2`.`col_datetime_key` < `test`.`t1`.`col_time_key`) SELECT * FROM t1 ignore INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_datetime_key < col_time_key; col_time_key col_datetime_key -24:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 00:00:00 2012-01-30 00:00:00 24:00:00 2012-01-29 00:00:00 24:00:00 2012-01-30 00:00:00 24:00:00 2012-01-31 00:00:00 48:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_time_key < col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 100.00 Using index 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` FORCE INDEX (`col_time_key`) straight_join `test`.`t2` IGNORE INDEX (`col_datetime_key`) where (`test`.`t1`.`col_time_key` < `test`.`t2`.`col_datetime_key`) SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_time_key < col_datetime_key; col_time_key col_datetime_key -24:00:00 2012-01-31 00:00:00 -24:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -48:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-02-01 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_datetime_key < col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 100.00 Using index 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` FORCE INDEX (`col_time_key`) straight_join `test`.`t2` IGNORE INDEX (`col_datetime_key`) where (`test`.`t2`.`col_datetime_key` < `test`.`t1`.`col_time_key`) SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 ignore INDEX (col_datetime_key) WHERE col_datetime_key < col_time_key; col_time_key col_datetime_key -24:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 00:00:00 2012-01-30 00:00:00 24:00:00 2012-01-29 00:00:00 24:00:00 2012-01-30 00:00:00 24:00:00 2012-01-31 00:00:00 48:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_time_key < col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 100.00 Using index 1 SIMPLE t2 NULL ALL col_datetime_key NULL NULL NULL 5 33.33 Range checked for each record (index map: 0x1) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` FORCE INDEX (`col_time_key`) straight_join `test`.`t2` FORCE INDEX (`col_datetime_key`) where (`test`.`t1`.`col_time_key` < `test`.`t2`.`col_datetime_key`) SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_time_key < col_datetime_key; col_time_key col_datetime_key -24:00:00 2012-01-31 00:00:00 -24:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -48:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-02-01 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 2012-02-02 00:00:00 EXPLAIN EXTENDED SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_datetime_key < col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 100.00 Using index 1 SIMPLE t2 NULL ALL col_datetime_key NULL NULL NULL 5 33.33 Range checked for each record (index map: 0x1) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t1`.`col_time_key` AS `col_time_key`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key` from `test`.`t1` FORCE INDEX (`col_time_key`) straight_join `test`.`t2` FORCE INDEX (`col_datetime_key`) where (`test`.`t2`.`col_datetime_key` < `test`.`t1`.`col_time_key`) SELECT * FROM t1 force INDEX (col_time_key) STRAIGHT_JOIN t2 force INDEX (col_datetime_key) WHERE col_datetime_key < col_time_key; col_time_key col_datetime_key -24:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 00:00:00 2012-01-30 00:00:00 24:00:00 2012-01-29 00:00:00 24:00:00 2012-01-30 00:00:00 24:00:00 2012-01-31 00:00:00 48:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 EXPLAIN EXTENDED SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_time_key < col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` IGNORE INDEX (`col_datetime_key`) straight_join `test`.`t1` IGNORE INDEX (`col_time_key`) where (`test`.`t1`.`col_time_key` < `test`.`t2`.`col_datetime_key`) SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_time_key < col_datetime_key; col_datetime_key col_time_key 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -24:00:00 2012-01-31 00:00:00 -48:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-01 00:00:00 00:00:00 2012-02-02 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 EXPLAIN EXTENDED SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_datetime_key < col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` IGNORE INDEX (`col_datetime_key`) straight_join `test`.`t1` IGNORE INDEX (`col_time_key`) where (`test`.`t2`.`col_datetime_key` < `test`.`t1`.`col_time_key`) SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_datetime_key < col_time_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -24:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 24:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 00:00:00 2012-01-30 00:00:00 24:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 24:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_time_key < col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 33.33 Using where; Using index; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Warning 1739 Cannot use range access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` IGNORE INDEX (`col_datetime_key`) straight_join `test`.`t1` FORCE INDEX (`col_time_key`) where (`test`.`t1`.`col_time_key` < `test`.`t2`.`col_datetime_key`) SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_time_key < col_datetime_key; col_datetime_key col_time_key 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -24:00:00 2012-01-31 00:00:00 -48:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-01 00:00:00 00:00:00 2012-02-02 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 EXPLAIN EXTENDED SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_datetime_key < col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL ALL NULL NULL NULL NULL 5 100.00 NULL 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 33.33 Using where; Using index; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Warning 1739 Cannot use range access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` IGNORE INDEX (`col_datetime_key`) straight_join `test`.`t1` FORCE INDEX (`col_time_key`) where (`test`.`t2`.`col_datetime_key` < `test`.`t1`.`col_time_key`) SELECT * FROM t2 ignore INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_datetime_key < col_time_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -24:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 24:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 00:00:00 2012-01-30 00:00:00 24:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 24:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_time_key < col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL index col_datetime_key col_datetime_key 6 NULL 5 100.00 Using index 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` FORCE INDEX (`col_datetime_key`) straight_join `test`.`t1` IGNORE INDEX (`col_time_key`) where (`test`.`t1`.`col_time_key` < `test`.`t2`.`col_datetime_key`) SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_time_key < col_datetime_key; col_datetime_key col_time_key 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -24:00:00 2012-01-31 00:00:00 -48:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-01 00:00:00 00:00:00 2012-02-02 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 EXPLAIN EXTENDED SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_datetime_key < col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL index col_datetime_key col_datetime_key 6 NULL 5 100.00 Using index 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 5 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` FORCE INDEX (`col_datetime_key`) straight_join `test`.`t1` IGNORE INDEX (`col_time_key`) where (`test`.`t2`.`col_datetime_key` < `test`.`t1`.`col_time_key`) SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 ignore INDEX (col_time_key) WHERE col_datetime_key < col_time_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -24:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 24:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 00:00:00 2012-01-30 00:00:00 24:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 24:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 48:00:00 EXPLAIN EXTENDED SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_time_key < col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL index col_datetime_key col_datetime_key 6 NULL 5 100.00 Using index 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 33.33 Using where; Using index; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Warning 1739 Cannot use range access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` FORCE INDEX (`col_datetime_key`) straight_join `test`.`t1` FORCE INDEX (`col_time_key`) where (`test`.`t1`.`col_time_key` < `test`.`t2`.`col_datetime_key`) SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_time_key < col_datetime_key; col_datetime_key col_time_key 2012-01-30 00:00:00 -48:00:00 2012-01-31 00:00:00 -24:00:00 2012-01-31 00:00:00 -48:00:00 2012-02-01 00:00:00 -24:00:00 2012-02-01 00:00:00 -48:00:00 2012-02-01 00:00:00 00:00:00 2012-02-02 00:00:00 -24:00:00 2012-02-02 00:00:00 -48:00:00 2012-02-02 00:00:00 00:00:00 2012-02-02 00:00:00 24:00:00 EXPLAIN EXTENDED SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_datetime_key < col_time_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL index col_datetime_key col_datetime_key 6 NULL 5 100.00 Using index 1 SIMPLE t1 NULL index col_time_key col_time_key 4 NULL 5 33.33 Using where; Using index; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Warning 1739 Cannot use range access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Note 1003 /* select#1 */ select `test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t1`.`col_time_key` AS `col_time_key` from `test`.`t2` FORCE INDEX (`col_datetime_key`) straight_join `test`.`t1` FORCE INDEX (`col_time_key`) where (`test`.`t2`.`col_datetime_key` < `test`.`t1`.`col_time_key`) SELECT * FROM t2 force INDEX (col_datetime_key) STRAIGHT_JOIN t1 force INDEX (col_time_key) WHERE col_datetime_key < col_time_key; col_datetime_key col_time_key 2012-01-29 00:00:00 -24:00:00 2012-01-29 00:00:00 00:00:00 2012-01-29 00:00:00 24:00:00 2012-01-29 00:00:00 48:00:00 2012-01-30 00:00:00 00:00:00 2012-01-30 00:00:00 24:00:00 2012-01-30 00:00:00 48:00:00 2012-01-31 00:00:00 24:00:00 2012-01-31 00:00:00 48:00:00 2012-02-01 00:00:00 48:00:00 DROP TABLE t1,t2; # Original test of the bug report CREATE TABLE t1 ( pk INT NOT NULL AUTO_INCREMENT, col_int_nokey INT, col_int_key INT NOT NULL, PRIMARY KEY (pk), KEY col_int_key (col_int_key) ) ENGINE=InnoDB; INSERT INTO t1 VALUES (10,1,7), (11,7,0), (12,4,9), (13,7,3), (14,0,4), (15,2,2), (16,9,5), (17,4,3), (18,0,1), (19,9,3), (20,1,6), (21,3,7), (22,8,5), (23,8,1), (24,18,204), (25,84,224), (26,6,9), (27,3,5), (28,6,0), (29,6,3); CREATE TABLE t2 ( col_int_nokey INT NOT NULL, col_datetime_key DATETIME NOT NULL, col_varchar_key VARCHAR(1) NOT NULL, KEY col_datetime_key (col_datetime_key), KEY col_varchar_key (col_varchar_key) ) ENGINE=InnoDB; INSERT INTO t2 VALUES (1,'2001-11-04 19:07:55','k'); CREATE TABLE t3 ( col_time_key TIME, KEY col_time_key (col_time_key) ) ENGINE=InnoDB; INSERT INTO t3 VALUES ('21:22:34'), ('10:50:38'), ('00:21:38'), ('04:08:02'), ('16:25:11'), ('10:14:58'), ('19:47:59'), ('11:14:24'), ('00:00:00'), ('00:00:00'), ('15:57:25'), ('07:05:51'), ('19:22:21'), ('03:53:16'), ('09:16:38'), ('15:37:26'), ('00:00:00'), ('05:03:03'), ('02:59:24'), ('00:01:58'); ANALYZE TABLE t1; ANALYZE TABLE t2; ANALYZE TABLE t3; EXPLAIN EXTENDED SELECT * FROM t2 STRAIGHT_JOIN t3 FORCE INDEX (col_time_key) ON t3.col_time_key > t2.col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL ALL col_datetime_key NULL NULL NULL 1 100.00 NULL 1 SIMPLE t3 NULL index col_time_key col_time_key 4 NULL 20 33.33 Using where; Using index; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Warning 1739 Cannot use range access on index 'col_time_key' due to type or collation conversion on field 'col_time_key' Note 1003 /* select#1 */ select `test`.`t2`.`col_int_nokey` AS `col_int_nokey`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t2`.`col_varchar_key` AS `col_varchar_key`,`test`.`t3`.`col_time_key` AS `col_time_key` from `test`.`t2` straight_join `test`.`t3` FORCE INDEX (`col_time_key`) where (`test`.`t3`.`col_time_key` > `test`.`t2`.`col_datetime_key`) SELECT * FROM t2 STRAIGHT_JOIN t3 FORCE INDEX (col_time_key) ON t3.col_time_key > t2.col_datetime_key; col_int_nokey col_datetime_key col_varchar_key col_time_key 1 2001-11-04 19:07:55 k 00:00:00 1 2001-11-04 19:07:55 k 00:00:00 1 2001-11-04 19:07:55 k 00:00:00 1 2001-11-04 19:07:55 k 00:01:58 1 2001-11-04 19:07:55 k 00:21:38 1 2001-11-04 19:07:55 k 02:59:24 1 2001-11-04 19:07:55 k 03:53:16 1 2001-11-04 19:07:55 k 04:08:02 1 2001-11-04 19:07:55 k 05:03:03 1 2001-11-04 19:07:55 k 07:05:51 1 2001-11-04 19:07:55 k 09:16:38 1 2001-11-04 19:07:55 k 10:14:58 1 2001-11-04 19:07:55 k 10:50:38 1 2001-11-04 19:07:55 k 11:14:24 1 2001-11-04 19:07:55 k 15:37:26 1 2001-11-04 19:07:55 k 15:57:25 1 2001-11-04 19:07:55 k 16:25:11 1 2001-11-04 19:07:55 k 19:22:21 1 2001-11-04 19:07:55 k 19:47:59 1 2001-11-04 19:07:55 k 21:22:34 EXPLAIN EXTENDED SELECT * FROM t2 STRAIGHT_JOIN t3 IGNORE INDEX (col_time_key) ON t3.col_time_key > t2.col_datetime_key; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL ALL col_datetime_key NULL NULL NULL 1 100.00 NULL 1 SIMPLE t3 NULL ALL NULL NULL NULL NULL 20 33.33 Using where; Using join buffer (Block Nested Loop) Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select `test`.`t2`.`col_int_nokey` AS `col_int_nokey`,`test`.`t2`.`col_datetime_key` AS `col_datetime_key`,`test`.`t2`.`col_varchar_key` AS `col_varchar_key`,`test`.`t3`.`col_time_key` AS `col_time_key` from `test`.`t2` straight_join `test`.`t3` IGNORE INDEX (`col_time_key`) where (`test`.`t3`.`col_time_key` > `test`.`t2`.`col_datetime_key`) SELECT * FROM t2 STRAIGHT_JOIN t3 IGNORE INDEX (col_time_key) ON t3.col_time_key > t2.col_datetime_key; col_int_nokey col_datetime_key col_varchar_key col_time_key 1 2001-11-04 19:07:55 k 00:00:00 1 2001-11-04 19:07:55 k 00:00:00 1 2001-11-04 19:07:55 k 00:00:00 1 2001-11-04 19:07:55 k 00:01:58 1 2001-11-04 19:07:55 k 00:21:38 1 2001-11-04 19:07:55 k 02:59:24 1 2001-11-04 19:07:55 k 03:53:16 1 2001-11-04 19:07:55 k 04:08:02 1 2001-11-04 19:07:55 k 05:03:03 1 2001-11-04 19:07:55 k 07:05:51 1 2001-11-04 19:07:55 k 09:16:38 1 2001-11-04 19:07:55 k 10:14:58 1 2001-11-04 19:07:55 k 10:50:38 1 2001-11-04 19:07:55 k 11:14:24 1 2001-11-04 19:07:55 k 15:37:26 1 2001-11-04 19:07:55 k 15:57:25 1 2001-11-04 19:07:55 k 16:25:11 1 2001-11-04 19:07:55 k 19:22:21 1 2001-11-04 19:07:55 k 19:47:59 1 2001-11-04 19:07:55 k 21:22:34 DROP TABLE t1,t2,t3; SET TIMESTAMP = DEFAULT; SET sql_mode = default; # # End of 5.6 tests #
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