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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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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xml.result
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Code Editor : group_min_max_innodb.result
drop view if exists v1; drop table if exists t1,t4; create table t4 ( pk_col int auto_increment primary key, a1 char(64), a2 char(64), b char(16), c char(16) not null, d char(16), dummy char(64) default ' ' ) engine=innodb; insert into t4 (a1, a2, b, c, d) values ('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'), ('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'), ('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'), ('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'), ('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'), ('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'), ('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'), ('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'), ('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'), ('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'), ('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'), ('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4'), ('d','a','a','a411','xy1'),('d','a','a','b411','xy2'),('d','a','a','c411','xy3'),('d','a','a','d411','xy4'), ('d','a','b','e412','xy1'),('d','a','b','f412','xy2'),('d','a','b','g412','xy3'),('d','a','b','h412','xy4'), ('d','b','a','i421','xy1'),('d','b','a','j421','xy2'),('d','b','a','k421','xy3'),('d','b','a','l421','xy4'), ('d','b','b','m422','xy1'),('d','b','b','n422','xy2'),('d','b','b','o422','xy3'),('d','b','b','p422','xy4'), ('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'), ('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'), ('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'), ('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'), ('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'), ('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'), ('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'), ('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'), ('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'), ('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'), ('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'), ('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4'), ('d','a','a','a411','xy1'),('d','a','a','b411','xy2'),('d','a','a','c411','xy3'),('d','a','a','d411','xy4'), ('d','a','b','e412','xy1'),('d','a','b','f412','xy2'),('d','a','b','g412','xy3'),('d','a','b','h412','xy4'), ('d','b','a','i421','xy1'),('d','b','a','j421','xy2'),('d','b','a','k421','xy3'),('d','b','a','l421','xy4'), ('d','b','b','m422','xy1'),('d','b','b','n422','xy2'),('d','b','b','o422','xy3'),('d','b','b','p422','xy4'); create index idx12672_0 on t4 (a1); create index idx12672_1 on t4 (a1,a2,b,c); create index idx12672_2 on t4 (a1,a2,b); analyze table t4; Table Op Msg_type Msg_text test.t4 analyze status OK select distinct a1 from t4 where pk_col not in (1,2,3,4); a1 a b c d drop table t4; create table t1 ( a varchar(30), b varchar(30), primary key(a), key(b) ) engine=innodb; select distinct a from t1; a drop table t1; create table t1(a int, key(a)) engine=innodb; insert into t1 values(1); select a, count(a) from t1 group by a with rollup; a count(a) 1 1 NULL 1 drop table t1; create table t1 (f1 int, f2 char(1), primary key(f1,f2)) engine=innodb stats_persistent=0; insert into t1 values ( 1,"e"),(2,"a"),( 3,"c"),(4,"d"); alter table t1 drop primary key, add primary key (f2, f1); explain select distinct f1 a, f1 b from t1; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index PRIMARY PRIMARY 5 NULL 4 100.00 Using index; Using temporary Warnings: Note 1003 /* select#1 */ select distinct `test`.`t1`.`f1` AS `a`,`test`.`t1`.`f1` AS `b` from `test`.`t1` explain select distinct f1, f2 from t1; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index PRIMARY PRIMARY 5 NULL 4 100.00 Using index Warnings: Note 1003 /* select#1 */ select distinct `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`f2` AS `f2` from `test`.`t1` drop table t1; create table t1(pk int primary key) engine=innodb; create view v1 as select pk from t1 where pk < 20; insert into t1 values (1), (2), (3), (4); select distinct pk from v1; pk 1 2 3 4 insert into t1 values (5), (6), (7); select distinct pk from v1; pk 1 2 3 4 5 6 7 drop view v1; drop table t1; End of 5.1 tests # # Bug#12540545 61101: ASSERTION FAILURE IN THREAD 1256741184 IN # FILE /BUILDDIR/BUILD/BUILD/MYSQ # CREATE TABLE t1 (a CHAR(1), b CHAR(1), PRIMARY KEY (a,b)) ENGINE=InnoDB; INSERT INTO t1 VALUES ('a', 'b'), ('c', 'd'); EXPLAIN SELECT COUNT(DISTINCT a) FROM t1 WHERE b = 'b'; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index PRIMARY PRIMARY 2 NULL 2 50.00 Using where; Using index Warnings: Note 1003 /* select#1 */ select count(distinct `test`.`t1`.`a`) AS `COUNT(DISTINCT a)` from `test`.`t1` where (`test`.`t1`.`b` = 'b') SELECT COUNT(DISTINCT a) FROM t1 WHERE b = 'b'; COUNT(DISTINCT a) 1 DROP TABLE t1; CREATE TABLE t1 (a CHAR(1) NOT NULL, b CHAR(1) NOT NULL, UNIQUE KEY (a,b)) ENGINE=InnoDB; INSERT INTO t1 VALUES ('a', 'b'), ('c', 'd'); EXPLAIN SELECT COUNT(DISTINCT a) FROM t1 WHERE b = 'b'; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index a a 2 NULL 2 50.00 Using where; Using index Warnings: Note 1003 /* select#1 */ select count(distinct `test`.`t1`.`a`) AS `COUNT(DISTINCT a)` from `test`.`t1` where (`test`.`t1`.`b` = 'b') SELECT COUNT(DISTINCT a) FROM t1 WHERE b = 'b'; COUNT(DISTINCT a) 1 DROP TABLE t1; End of 5.5 tests # # Bug#17909656 - WRONG RESULTS FOR A SIMPLE QUERY WITH GROUP BY # CREATE TABLE t0 ( i1 INTEGER NOT NULL ); INSERT INTO t0 VALUES (1),(2),(3),(4),(5),(6),(7),(8),(9),(10), (11),(12),(13),(14),(15),(16),(17),(18),(19),(20), (21),(22),(23),(24),(25),(26),(27),(28),(29),(30); CREATE TABLE t1 ( c1 CHAR(1) NOT NULL, i1 INTEGER NOT NULL, i2 INTEGER NOT NULL, UNIQUE KEY k1 (c1,i2) ) ENGINE=InnoDB; INSERT INTO t1 SELECT 'A',i1,i1 FROM t0; INSERT INTO t1 SELECT 'B',i1,i1 FROM t0; INSERT INTO t1 SELECT 'C',i1,i1 FROM t0; INSERT INTO t1 SELECT 'D',i1,i1 FROM t0; INSERT INTO t1 SELECT 'E',i1,i1 FROM t0; INSERT INTO t1 SELECT 'F',i1,i1 FROM t0; CREATE TABLE t2 ( c1 CHAR(1) NOT NULL, i1 INTEGER NOT NULL, i2 INTEGER NOT NULL, UNIQUE KEY k2 (c1,i1,i2) ) ENGINE=InnoDB; INSERT INTO t2 SELECT 'A',i1,i1 FROM t0; INSERT INTO t2 SELECT 'B',i1,i1 FROM t0; INSERT INTO t2 SELECT 'C',i1,i1 FROM t0; INSERT INTO t2 SELECT 'D',i1,i1 FROM t0; INSERT INTO t2 SELECT 'E',i1,i1 FROM t0; INSERT INTO t2 SELECT 'F',i1,i1 FROM t0; ANALYZE TABLE t1; ANALYZE TABLE t2; set optimizer_trace_max_mem_size=1048576; set @@session.optimizer_trace='enabled=on'; set end_markers_in_json=on; EXPLAIN SELECT c1, max(i2) FROM t1 WHERE (c1 = 'C' AND i2 = 17) OR ( c1 = 'F') GROUP BY c1; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL range k1 k1 5 NULL ROWS 100.00 Using where; Using index Warnings: Note 1003 /* select#1 */ select `test`.`t1`.`c1` AS `c1`,max(`test`.`t1`.`i2`) AS `max(i2)` from `test`.`t1` where (((`test`.`t1`.`i2` = 17) and (`test`.`t1`.`c1` = 'C')) or (`test`.`t1`.`c1` = 'F')) group by `test`.`t1`.`c1` SELECT c1, max(i2) FROM t1 WHERE (c1 = 'C' AND i2 = 17) OR ( c1 = 'F') GROUP BY c1; c1 max(i2) C 17 F 30 SELECT TRACE RLIKE 'minmax_keypart_in_disjunctive_query' AS OK FROM INFORMATION_SCHEMA.OPTIMIZER_TRACE; OK 1 EXPLAIN SELECT c1, max(i2) FROM t1 WHERE (c1 = 'C' OR ( c1 = 'F' AND i2 = 17)) GROUP BY c1; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL range k1 k1 5 NULL ROWS 100.00 Using where; Using index Warnings: Note 1003 /* select#1 */ select `test`.`t1`.`c1` AS `c1`,max(`test`.`t1`.`i2`) AS `max(i2)` from `test`.`t1` where ((`test`.`t1`.`c1` = 'C') or ((`test`.`t1`.`i2` = 17) and (`test`.`t1`.`c1` = 'F'))) group by `test`.`t1`.`c1` SELECT c1, max(i2) FROM t1 WHERE (c1 = 'C' OR ( c1 = 'F' AND i2 = 17)) GROUP BY c1; c1 max(i2) C 30 F 17 SELECT TRACE RLIKE 'minmax_keypart_in_disjunctive_query' AS OK FROM INFORMATION_SCHEMA.OPTIMIZER_TRACE; OK 1 EXPLAIN SELECT c1, max(i2) FROM t1 WHERE (c1 = 'C' OR c1 = 'F' ) AND ( i2 = 17 ) GROUP BY c1; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL range k1 k1 5 NULL ROWS 100.00 Using where; Using index for group-by Warnings: Note 1003 /* select#1 */ select `test`.`t1`.`c1` AS `c1`,max(`test`.`t1`.`i2`) AS `max(i2)` from `test`.`t1` where ((`test`.`t1`.`i2` = 17) and ((`test`.`t1`.`c1` = 'C') or (`test`.`t1`.`c1` = 'F'))) group by `test`.`t1`.`c1` SELECT c1, max(i2) FROM t1 WHERE (c1 = 'C' OR c1 = 'F' ) AND ( i2 = 17 ) GROUP BY c1; c1 max(i2) C 17 F 17 SELECT TRACE RLIKE 'minmax_keypart_in_disjunctive_query' AS OK FROM INFORMATION_SCHEMA.OPTIMIZER_TRACE; OK 0 EXPLAIN SELECT c1, max(i2) FROM t1 WHERE ((c1 = 'C' AND (i2 = 40 OR i2 = 30)) OR ( c1 = 'F' AND (i2 = 40 ))) GROUP BY c1; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL range k1 k1 5 NULL ROWS 100.00 Using where; Using index Warnings: Note 1003 /* select#1 */ select `test`.`t1`.`c1` AS `c1`,max(`test`.`t1`.`i2`) AS `max(i2)` from `test`.`t1` where (((`test`.`t1`.`c1` = 'C') and ((`test`.`t1`.`i2` = 40) or (`test`.`t1`.`i2` = 30))) or ((`test`.`t1`.`i2` = 40) and (`test`.`t1`.`c1` = 'F'))) group by `test`.`t1`.`c1` SELECT c1, max(i2) FROM t1 WHERE ((c1 = 'C' AND (i2 = 40 OR i2 = 30)) OR ( c1 = 'F' AND (i2 = 40 ))) GROUP BY c1; c1 max(i2) C 30 SELECT TRACE RLIKE 'minmax_keypart_in_disjunctive_query' AS OK FROM INFORMATION_SCHEMA.OPTIMIZER_TRACE; OK 1 EXPLAIN SELECT c1, i1, max(i2) FROM t2 WHERE (c1 = 'C' OR ( c1 = 'F' AND i1 < 35)) AND ( i2 = 17 ) GROUP BY c1,i1; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL range k2 k2 5 NULL ROWS 10.00 Using where; Using index Warnings: Note 1003 /* select#1 */ select `test`.`t2`.`c1` AS `c1`,`test`.`t2`.`i1` AS `i1`,max(`test`.`t2`.`i2`) AS `max(i2)` from `test`.`t2` where ((`test`.`t2`.`i2` = 17) and ((`test`.`t2`.`c1` = 'C') or ((`test`.`t2`.`c1` = 'F') and (`test`.`t2`.`i1` < 35)))) group by `test`.`t2`.`c1`,`test`.`t2`.`i1` SELECT c1, i1, max(i2) FROM t2 WHERE (c1 = 'C' OR ( c1 = 'F' AND i1 < 35)) AND ( i2 = 17 ) GROUP BY c1,i1; c1 i1 max(i2) C 17 17 F 17 17 SELECT TRACE RLIKE 'minmax_keypart_in_disjunctive_query' AS OK FROM INFORMATION_SCHEMA.OPTIMIZER_TRACE; OK 0 EXPLAIN SELECT c1, i1, max(i2) FROM t2 WHERE (((c1 = 'C' AND i1 < 40) OR ( c1 = 'F' AND i1 < 35)) AND ( i2 = 17 )) GROUP BY c1,i1; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL range k2 k2 5 NULL ROWS 10.00 Using where; Using index Warnings: Note 1003 /* select#1 */ select `test`.`t2`.`c1` AS `c1`,`test`.`t2`.`i1` AS `i1`,max(`test`.`t2`.`i2`) AS `max(i2)` from `test`.`t2` where ((`test`.`t2`.`i2` = 17) and (((`test`.`t2`.`c1` = 'C') and (`test`.`t2`.`i1` < 40)) or ((`test`.`t2`.`c1` = 'F') and (`test`.`t2`.`i1` < 35)))) group by `test`.`t2`.`c1`,`test`.`t2`.`i1` SELECT c1, i1, max(i2) FROM t2 WHERE (((c1 = 'C' AND i1 < 40) OR ( c1 = 'F' AND i1 < 35)) AND ( i2 = 17 )) GROUP BY c1,i1; c1 i1 max(i2) C 17 17 F 17 17 SELECT TRACE RLIKE 'minmax_keypart_in_disjunctive_query' AS OK FROM INFORMATION_SCHEMA.OPTIMIZER_TRACE; OK 0 EXPLAIN SELECT c1, i1, max(i2) FROM t2 WHERE ((c1 = 'C' AND i1 < 40) OR ( c1 = 'F' AND i1 < 35) OR ( i2 = 17 )) GROUP BY c1,i1; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL index k2 k2 9 NULL ROWS 19.72 Using where; Using index Warnings: Note 1003 /* select#1 */ select `test`.`t2`.`c1` AS `c1`,`test`.`t2`.`i1` AS `i1`,max(`test`.`t2`.`i2`) AS `max(i2)` from `test`.`t2` where (((`test`.`t2`.`c1` = 'C') and (`test`.`t2`.`i1` < 40)) or ((`test`.`t2`.`c1` = 'F') and (`test`.`t2`.`i1` < 35)) or (`test`.`t2`.`i2` = 17)) group by `test`.`t2`.`c1`,`test`.`t2`.`i1` SELECT c1, i1, max(i2) FROM t2 WHERE ((c1 = 'C' AND i1 < 40) OR ( c1 = 'F' AND i1 < 35) OR ( i2 = 17 )) GROUP BY c1,i1; c1 i1 max(i2) A 17 17 B 17 17 C 1 1 C 2 2 C 3 3 C 4 4 C 5 5 C 6 6 C 7 7 C 8 8 C 9 9 C 10 10 C 11 11 C 12 12 C 13 13 C 14 14 C 15 15 C 16 16 C 17 17 C 18 18 C 19 19 C 20 20 C 21 21 C 22 22 C 23 23 C 24 24 C 25 25 C 26 26 C 27 27 C 28 28 C 29 29 C 30 30 D 17 17 E 17 17 F 1 1 F 2 2 F 3 3 F 4 4 F 5 5 F 6 6 F 7 7 F 8 8 F 9 9 F 10 10 F 11 11 F 12 12 F 13 13 F 14 14 F 15 15 F 16 16 F 17 17 F 18 18 F 19 19 F 20 20 F 21 21 F 22 22 F 23 23 F 24 24 F 25 25 F 26 26 F 27 27 F 28 28 F 29 29 F 30 30 SELECT TRACE RLIKE 'minmax_keypart_in_disjunctive_query' AS OK FROM INFORMATION_SCHEMA.OPTIMIZER_TRACE; OK 1 SET optimizer_trace_max_mem_size=DEFAULT; SET optimizer_trace=DEFAULT; SET end_markers_in_json=DEFAULT; DROP TABLE t0,t1,t2; # # Bug #21749123: SELECT DISTINCT, WRONG RESULTS COMBINED WITH # USE_INDEX_EXTENSIONS=OFF # CREATE TABLE t1 ( pk_col INT AUTO_INCREMENT PRIMARY KEY, a1 CHAR(64), KEY a1_idx (a1) ) ENGINE=INNODB; INSERT INTO t1 (a1) VALUES ('a'),('a'),('a'),('a'), ('a'); CREATE TABLE t2 ( pk_col1 INT NOT NULL, pk_col2 INT NOT NULL, a1 CHAR(64), a2 CHAR(64), PRIMARY KEY(pk_col1, pk_col2), KEY a1_idx (a1), KEY a1_a2_idx (a1, a2) ) ENGINE=INNODB; INSERT INTO t2 (pk_col1, pk_col2, a1, a2) VALUES (1,1,'a','b'),(1,2,'a','b'), (1,3,'a','c'),(1,4,'a','c'), (2,1,'a','d'); ANALYZE TABLE t1; Table Op Msg_type Msg_text test.t1 analyze status OK ANALYZE TABLE t2; Table Op Msg_type Msg_text test.t2 analyze status OK EXPLAIN SELECT DISTINCT a1 FROM t1 WHERE (pk_col = 2 OR pk_col = 22) AND a1 = 'a'; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL range PRIMARY,a1_idx a1_idx 69 NULL 2 100.00 Using where; Using index Warnings: Note 1003 /* select#1 */ select distinct `test`.`t1`.`a1` AS `a1` from `test`.`t1` where ((`test`.`t1`.`a1` = 'a') and ((`test`.`t1`.`pk_col` = 2) or (`test`.`t1`.`pk_col` = 22))) SELECT DISTINCT a1 FROM t1 WHERE (pk_col = 2 OR pk_col = 22) AND a1 = 'a'; a1 a EXPLAIN SELECT COUNT(DISTINCT a1) FROM t1 GROUP BY a1,pk_col; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL range a1_idx a1_idx 69 NULL 6 100.00 Using index for group-by (scanning) Warnings: Note 1003 /* select#1 */ select count(distinct `test`.`t1`.`a1`) AS `COUNT(DISTINCT a1)` from `test`.`t1` group by `test`.`t1`.`a1`,`test`.`t1`.`pk_col` SELECT COUNT(DISTINCT a1) FROM t1 GROUP BY a1,pk_col; COUNT(DISTINCT a1) 1 1 1 1 1 EXPLAIN SELECT COUNT(DISTINCT a1) FROM t2 GROUP BY a1,pk_col1; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL range a1_idx,a1_a2_idx a1_idx 69 NULL 3 100.00 Using index for group-by Warnings: Note 1003 /* select#1 */ select count(distinct `test`.`t2`.`a1`) AS `COUNT(DISTINCT a1)` from `test`.`t2` group by `test`.`t2`.`a1`,`test`.`t2`.`pk_col1` SELECT COUNT(DISTINCT a1) FROM t2 GROUP BY a1,pk_col1; COUNT(DISTINCT a1) 1 1 EXPLAIN SELECT COUNT(DISTINCT a1) FROM t2 GROUP BY a1,a2; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL range a1_a2_idx a1_a2_idx 130 NULL 4 100.00 Using index for group-by (scanning) Warnings: Note 1003 /* select#1 */ select count(distinct `test`.`t2`.`a1`) AS `COUNT(DISTINCT a1)` from `test`.`t2` group by `test`.`t2`.`a1`,`test`.`t2`.`a2` SELECT COUNT(DISTINCT a1) FROM t2 GROUP BY a1,a2; COUNT(DISTINCT a1) 1 1 1 SET @optimizer_switch_save=@@optimizer_switch; SET @@optimizer_switch= "use_index_extensions=off"; EXPLAIN SELECT DISTINCT a1 FROM t1 WHERE (pk_col = 2 OR pk_col = 22) AND a1 = 'a'; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ref PRIMARY,a1_idx a1_idx 65 const 5 40.00 Using where; Using index Warnings: Note 1003 /* select#1 */ select distinct `test`.`t1`.`a1` AS `a1` from `test`.`t1` where ((`test`.`t1`.`a1` = 'a') and ((`test`.`t1`.`pk_col` = 2) or (`test`.`t1`.`pk_col` = 22))) SELECT DISTINCT a1 FROM t1 WHERE (pk_col = 2 OR pk_col = 22) AND a1 = 'a'; a1 a EXPLAIN SELECT COUNT(DISTINCT a1) FROM t1 GROUP BY a1,pk_col; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index a1_idx a1_idx 65 NULL 5 100.00 Using index Warnings: Note 1003 /* select#1 */ select count(distinct `test`.`t1`.`a1`) AS `COUNT(DISTINCT a1)` from `test`.`t1` group by `test`.`t1`.`a1`,`test`.`t1`.`pk_col` SELECT COUNT(DISTINCT a1) FROM t1 GROUP BY a1,pk_col; COUNT(DISTINCT a1) 1 1 1 1 1 EXPLAIN SELECT COUNT(DISTINCT a1) FROM t2 GROUP BY a1,pk_col1; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL index a1_idx,a1_a2_idx a1_idx 65 NULL 5 100.00 Using index Warnings: Note 1003 /* select#1 */ select count(distinct `test`.`t2`.`a1`) AS `COUNT(DISTINCT a1)` from `test`.`t2` group by `test`.`t2`.`a1`,`test`.`t2`.`pk_col1` SELECT COUNT(DISTINCT a1) FROM t2 GROUP BY a1,pk_col1; COUNT(DISTINCT a1) 1 1 EXPLAIN SELECT COUNT(DISTINCT a1) FROM t2 GROUP BY a1,a2; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL range a1_a2_idx a1_a2_idx 130 NULL 4 100.00 Using index for group-by (scanning) Warnings: Note 1003 /* select#1 */ select count(distinct `test`.`t2`.`a1`) AS `COUNT(DISTINCT a1)` from `test`.`t2` group by `test`.`t2`.`a1`,`test`.`t2`.`a2` SELECT COUNT(DISTINCT a1) FROM t2 GROUP BY a1,a2; COUNT(DISTINCT a1) 1 1 1 SET @@optimizer_switch= @optimizer_switch_save; DROP TABLE t1, t2; # # Bug #24671968: WHEN THE OPTIMISER IS USING INDEX FOR GROUP-BY IT OFTEN # OFTEN GIVES WRONG RESULTS # CREATE TABLE t1 ( id int NOT NULL, c1 int NOT NULL, c2 int, PRIMARY KEY(id), INDEX c1_c2_idx(c1, c2)); INSERT INTO t1 (id, c1, c2) VALUES (1,1,1), (2,2,2), (10,10,1), (11,10,8), (12,10,1), (13,10,2); ANALYZE TABLE t1; Table Op Msg_type Msg_text test.t1 analyze status OK EXPLAIN SELECT DISTINCT c1 FROM t1 WHERE EXISTS (SELECT * FROM DUAL WHERE (c2 = 2)); id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 NULL index c1_c2_idx c1_c2_idx 9 NULL 6 100.00 Using where; Using index 2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL NULL No tables used Warnings: Note 1276 Field or reference 'test.t1.c2' of SELECT #2 was resolved in SELECT #1 Note 1003 /* select#1 */ select distinct `test`.`t1`.`c1` AS `c1` from `test`.`t1` where exists(/* select#2 */ select 1 from DUAL where (`test`.`t1`.`c2` = 2)) EXPLAIN SELECT DISTINCT c1 FROM t1 WHERE 1 IN (2, (SELECT 1 FROM DUAL WHERE (c2 = 2)), 3); id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 NULL index c1_c2_idx c1_c2_idx 9 NULL 6 100.00 Using where; Using index 2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL NULL No tables used Warnings: Note 1276 Field or reference 'test.t1.c2' of SELECT #2 was resolved in SELECT #1 Note 1003 /* select#1 */ select distinct `test`.`t1`.`c1` AS `c1` from `test`.`t1` where (1 in (2,(/* select#2 */ select 1 from DUAL where (`test`.`t1`.`c2` = 2)),3)) EXPLAIN SELECT DISTINCT c1 FROM t1 WHERE c2 = 2; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL range c1_c2_idx c1_c2_idx 9 NULL 4 100.00 Using where; Using index for group-by Warnings: Note 1003 /* select#1 */ select distinct `test`.`t1`.`c1` AS `c1` from `test`.`t1` where (`test`.`t1`.`c2` = 2) EXPLAIN SELECT DISTINCT c1 FROM t1 IGNORE INDEX (c1_c2_idx) WHERE EXISTS (SELECT * FROM DUAL WHERE (c2 = 2)); id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 NULL ALL c1_c2_idx NULL NULL NULL 6 100.00 Using where; Using temporary 2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL NULL No tables used Warnings: Note 1276 Field or reference 'test.t1.c2' of SELECT #2 was resolved in SELECT #1 Note 1003 /* select#1 */ select distinct `test`.`t1`.`c1` AS `c1` from `test`.`t1` IGNORE INDEX (`c1_c2_idx`) where exists(/* select#2 */ select 1 from DUAL where (`test`.`t1`.`c2` = 2)) EXPLAIN SELECT DISTINCT c1 FROM t1 IGNORE INDEX (c1_c2_idx) WHERE 1 IN (2, (SELECT 1 FROM DUAL WHERE (c2 = 2)), 3); id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 NULL ALL c1_c2_idx NULL NULL NULL 6 100.00 Using where; Using temporary 2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL NULL No tables used Warnings: Note 1276 Field or reference 'test.t1.c2' of SELECT #2 was resolved in SELECT #1 Note 1003 /* select#1 */ select distinct `test`.`t1`.`c1` AS `c1` from `test`.`t1` IGNORE INDEX (`c1_c2_idx`) where (1 in (2,(/* select#2 */ select 1 from DUAL where (`test`.`t1`.`c2` = 2)),3)) SET optimizer_trace="enabled=on"; SELECT DISTINCT c1 FROM t1 WHERE EXISTS (SELECT * FROM DUAL WHERE (c2 = 2)); c1 2 10 SELECT TRACE INTO @trace FROM INFORMATION_SCHEMA.OPTIMIZER_TRACE; SELECT @trace RLIKE "keypart_reference_from_where_clause"; @trace RLIKE "keypart_reference_from_where_clause" 1 SET optimizer_trace="enabled=off"; SELECT DISTINCT c1 FROM t1 WHERE 1 IN (2, (SELECT 1 FROM DUAL WHERE (c2 = 2)), 3); c1 2 10 SELECT DISTINCT c1 FROM t1 WHERE c2 = 2; c1 2 10 SELECT DISTINCT c1 FROM t1 IGNORE INDEX (c1_c2_idx) WHERE EXISTS (SELECT * FROM DUAL WHERE (c2 = 2)); c1 2 10 SELECT DISTINCT c1 FROM t1 IGNORE INDEX (c1_c2_idx) WHERE 1 IN (2, (SELECT 1 FROM DUAL WHERE (c2 = 2)), 3); c1 2 10 DROP TABLE t1; # # Bug #26532061: SELECT DISTINCT WITH SECONDARY KEY FOR # 'USING INDEX FOR GROUP-BY' BAD RESULTS # CREATE TABLE t1( pk INT NOT NULL, c1 CHAR(2), c2 INT, PRIMARY KEY(pk), UNIQUE KEY ukey(c1, c2) ); INSERT INTO t1(pk, c1, c2) VALUES (1,1,1),(2,2,2),(3,3,3),(4,5,4); SET @a:=5; INSERT IGNORE INTo t1(pk, c1, c2) SELECT (@a:=@a+1),@a,@a FROM t1, t1 t2,t1 t3, t1 t4; ANALYZE TABLE t1; Table Op Msg_type Msg_text test.t1 analyze status OK SELECT * FROM t1 WHERE pk = 1 OR pk = 231; pk c1 c2 1 1 1 231 23 231 EXPLAIN SELECT DISTINCT c1 FROM t1 FORCE INDEX(ukey) WHERE pk IN (1,231) and c1 IS NOT NULL; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index ukey ukey 8 NULL 260 20.00 Using where; Using index Warnings: Note 1003 /* select#1 */ select distinct `test`.`t1`.`c1` AS `c1` from `test`.`t1` FORCE INDEX (`ukey`) where ((`test`.`t1`.`pk` in (1,231)) and (`test`.`t1`.`c1` is not null)) EXPLAIN SELECT DISTINCT c1 FROM t1 IGNORE INDEX(ukey) WHERE pk IN (1,231) and c1 IS NOT NULL; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL range PRIMARY,ukey PRIMARY 4 NULL 2 90.00 Using where; Using temporary Warnings: Note 1003 /* select#1 */ select distinct `test`.`t1`.`c1` AS `c1` from `test`.`t1` IGNORE INDEX (`ukey`) where ((`test`.`t1`.`pk` in (1,231)) and (`test`.`t1`.`c1` is not null)) SELECT DISTINCT c1 FROM t1 FORCE INDEX(ukey) WHERE pk IN (1,231) and c1 IS NOT NULL; c1 1 23 SELECT DISTINCT c1 FROM t1 IGNORE INDEX(ukey) WHERE pk IN (1,231) and c1 IS NOT NULL; c1 1 23 DROP TABLE t1; # # Bug #25989915: LOOSE INDEX SCANS RETURNING WRONG RESULT # CREATE TABLE t1 ( pk INT NOT NULL AUTO_INCREMENT, c1 varchar(100) DEFAULT NULL, c2 INT NOT NULL, PRIMARY KEY (pk), UNIQUE KEY ukey (c2,c1) ); INSERT INTO t1(pk, c2) VALUES (100, 0), (101, 0), (102, 0), (103, 0); ANALYZE TABLE t1; Table Op Msg_type Msg_text test.t1 analyze status OK EXPLAIN SELECT COUNT(DISTINCT(c2)) FROM t1 WHERE pk IN (102, 101); id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index PRIMARY,ukey ukey 107 NULL 4 50.00 Using where; Using index Warnings: Note 1003 /* select#1 */ select count(distinct `test`.`t1`.`c2`) AS `COUNT(DISTINCT(c2))` from `test`.`t1` where (`test`.`t1`.`pk` in (102,101)) EXPLAIN SELECT COUNT(DISTINCT(c2)) FROM t1 WHERE pk IN (102, 100); id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index PRIMARY,ukey ukey 107 NULL 4 50.00 Using where; Using index Warnings: Note 1003 /* select#1 */ select count(distinct `test`.`t1`.`c2`) AS `COUNT(DISTINCT(c2))` from `test`.`t1` where (`test`.`t1`.`pk` in (102,100)) SELECT COUNT(DISTINCT(c2)) FROM t1 WHERE pk IN (102, 101); COUNT(DISTINCT(c2)) 1 SELECT COUNT(DISTINCT(c2)) FROM t1 WHERE pk IN (102, 100); COUNT(DISTINCT(c2)) 1 DROP TABLE t1;
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