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 | : 13.58.117.102
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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 : func_group.result
drop table if exists t1,t2; set @sav_dpi= @@div_precision_increment; set div_precision_increment= 5; show variables like 'div_precision_increment'; Variable_name Value div_precision_increment 5 create table t1 (grp int, a bigint unsigned, c char(10) not null); insert into t1 values (1,1,"a"); insert into t1 values (2,2,"b"); insert into t1 values (2,3,"c"); insert into t1 values (3,4,"E"); insert into t1 values (3,5,"C"); insert into t1 values (3,6,"D"); select a,c,sum(a) from t1 group by a; a c sum(a) 1 a 1 2 b 2 3 c 3 4 E 4 5 C 5 6 D 6 select a,c,sum(a) from t1 where a > 10 group by a; a c sum(a) select sum(a) from t1 where a > 10; sum(a) NULL select a from t1 order by rand(10); a 2 6 1 3 5 4 select distinct a from t1 order by rand(10); a 2 6 1 3 5 4 select count(distinct a),count(distinct grp) from t1; count(distinct a) count(distinct grp) 6 3 insert into t1 values (null,null,''); select count(distinct a),count(distinct grp) from t1; count(distinct a) count(distinct grp) 6 3 select sum(all a),count(all a),avg(all a),std(all a),variance(all a),bit_or(all a),bit_and(all a),min(all a),max(all a),min(all c),max(all c) from t1; sum(all a) count(all a) avg(all a) std(all a) variance(all a) bit_or(all a) bit_and(all a) min(all a) max(all a) min(all c) max(all c) 21 6 3.50000 1.707825127659933 2.9166666666666665 7 0 1 6 E select grp, sum(a),count(a),avg(a),std(a),variance(a),bit_or(a),bit_and(a),min(a),max(a),min(c),max(c) from t1 group by grp; grp sum(a) count(a) avg(a) std(a) variance(a) bit_or(a) bit_and(a) min(a) max(a) min(c) max(c) NULL NULL 0 NULL NULL NULL 0 18446744073709551615 NULL NULL 1 1 1 1.00000 0 0 1 1 1 1 a a 2 5 2 2.50000 0.5 0.25 3 2 2 3 b c 3 15 3 5.00000 0.816496580927726 0.6666666666666666 7 4 4 6 C E select grp, sum(a)+count(a)+avg(a)+std(a)+variance(a)+bit_or(a)+bit_and(a)+min(a)+max(a)+min(c)+max(c) as sum from t1 group by grp; grp sum NULL NULL 1 7 2 20.25 3 45.48316324759439 create table t2 (grp int, a bigint unsigned, c char(10)); insert into t2 select grp,max(a)+max(grp),max(c) from t1 group by grp; replace into t2 select grp, a, c from t1 limit 2,1; select * from t2; grp a c NULL NULL 1 2 a 2 5 c 3 9 E 2 3 c drop table t1,t2; CREATE TABLE t1 (id int(11),value1 float(10,2)); INSERT INTO t1 VALUES (1,0.00),(1,1.00), (1,2.00), (2,10.00), (2,11.00), (2,12.00); CREATE TABLE t2 (id int(11),name char(20)); INSERT INTO t2 VALUES (1,'Set One'),(2,'Set Two'); select id, avg(value1), std(value1), variance(value1) from t1 group by id; id avg(value1) std(value1) variance(value1) 1 1.0000000 0.816496580927726 0.6666666666666666 2 11.0000000 0.816496580927726 0.6666666666666666 select name, avg(value1), std(value1), variance(value1) from t1, t2 where t1.id = t2.id group by t1.id; name avg(value1) std(value1) variance(value1) Set One 1.0000000 0.816496580927726 0.6666666666666666 Set Two 11.0000000 0.816496580927726 0.6666666666666666 drop table t1,t2; create table t1 (id int not null); create table t2 (id int not null,rating int null); insert into t1 values(1),(2),(3); insert into t2 values(1, 3),(2, NULL),(2, NULL),(3, 2),(3, NULL); select t1.id, avg(rating) from t1 left join t2 on ( t1.id = t2.id ) group by t1.id; id avg(rating) 1 3.00000 2 NULL 3 2.00000 select sql_small_result t2.id, avg(rating) from t2 group by t2.id; id avg(rating) 1 3.00000 2 NULL 3 2.00000 select sql_big_result t2.id, avg(rating) from t2 group by t2.id; id avg(rating) 1 3.00000 2 NULL 3 2.00000 select sql_small_result t2.id, avg(rating+0.0e0) from t2 group by t2.id; id avg(rating+0.0e0) 1 3 2 NULL 3 2 select sql_big_result t2.id, avg(rating+0.0e0) from t2 group by t2.id; id avg(rating+0.0e0) 1 3 2 NULL 3 2 drop table t1,t2; create table t1 (a smallint(6) primary key, c char(10), b text); INSERT INTO t1 VALUES (1,'1','1'); INSERT INTO t1 VALUES (2,'2','2'); INSERT INTO t1 VALUES (4,'4','4'); select count(*) from t1; count(*) 3 select count(*) from t1 where a = 1; count(*) 1 select count(*) from t1 where a = 100; count(*) 0 select count(*) from t1 where a >= 10; count(*) 0 select count(a) from t1 where a = 1; count(a) 1 select count(a) from t1 where a = 100; count(a) 0 select count(a) from t1 where a >= 10; count(a) 0 select count(b) from t1 where b >= 2; count(b) 2 select count(b) from t1 where b >= 10; count(b) 0 select count(c) from t1 where c = 10; count(c) 0 drop table t1; CREATE TABLE t1 (d DATETIME, i INT); INSERT INTO t1 VALUES (NOW(), 1); SELECT COUNT(i), i, COUNT(i)*i FROM t1 GROUP BY i; COUNT(i) i COUNT(i)*i 1 1 1 SELECT COUNT(i), (i+0), COUNT(i)*(i+0) FROM t1 GROUP BY i; COUNT(i) (i+0) COUNT(i)*(i+0) 1 1 1 DROP TABLE t1; create table t1 ( num float(5,2), user char(20) ); insert into t1 values (10.3,'nem'),(20.53,'monty'),(30.23,'sinisa'); insert into t1 values (30.13,'nem'),(20.98,'monty'),(10.45,'sinisa'); insert into t1 values (5.2,'nem'),(8.64,'monty'),(11.12,'sinisa'); select sum(num) from t1; sum(num) 147.58 select sum(num) from t1 group by user; sum(num) 50.15 45.63 51.80 drop table t1; create table t1 (a1 int, a2 char(3), key k1(a1), key k2(a2)); insert into t1 values(10,'aaa'), (10,null), (10,'bbb'), (20,'zzz'); create table t2(a1 char(3), a2 int, a3 real, key k1(a1), key k2(a2, a1)); select * from t1; a1 a2 10 aaa 10 NULL 10 bbb 20 zzz select min(a2) from t1; min(a2) aaa select max(t1.a1), max(t2.a2) from t1, t2; max(t1.a1) max(t2.a2) NULL NULL select max(t1.a1) from t1, t2; max(t1.a1) NULL select max(t2.a2), max(t1.a1) from t1, t2; max(t2.a2) max(t1.a1) NULL NULL explain select min(a2) from t1; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a2`) AS `min(a2)` from `test`.`t1` explain select max(t1.a1), max(t2.a2) from t1, t2; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL No matching min/max row Warnings: Note 1003 /* select#1 */ select max(`test`.`t1`.`a1`) AS `max(t1.a1)`,max(`test`.`t2`.`a2`) AS `max(t2.a2)` from `test`.`t1` join `test`.`t2` insert into t2 values('AAA', 10, 0.5); insert into t2 values('BBB', 20, 1.0); select t1.a1, t1.a2, t2.a1, t2.a2 from t1,t2; a1 a2 a1 a2 10 aaa AAA 10 10 aaa BBB 20 10 NULL AAA 10 10 NULL BBB 20 10 bbb AAA 10 10 bbb BBB 20 20 zzz AAA 10 20 zzz BBB 20 select max(t1.a1), max(t2.a1) from t1, t2 where t2.a2=9; max(t1.a1) max(t2.a1) NULL NULL select max(t2.a1), max(t1.a1) from t1, t2 where t2.a2=9; max(t2.a1) max(t1.a1) NULL NULL select t1.a1, t1.a2, t2.a1, t2.a2 from t1 left outer join t2 on t1.a1=10; a1 a2 a1 a2 10 NULL AAA 10 10 NULL BBB 20 10 aaa AAA 10 10 aaa BBB 20 10 bbb AAA 10 10 bbb BBB 20 20 zzz NULL NULL select max(t1.a2) from t1 left outer join t2 on t1.a1=10; max(t1.a2) zzz select max(t2.a1) from t2 left outer join t1 on t2.a2=10 where t2.a2=20; max(t2.a1) BBB select max(t2.a1) from t2 left outer join t1 on t2.a2=10 where t2.a2=10; max(t2.a1) AAA select max(t2.a1) from t1 left outer join t2 on t1.a2=t2.a1 and 1=0 where t2.a1='AAA'; max(t2.a1) NULL select max(t1.a2),max(t2.a1) from t1 left outer join t2 on t1.a1=10; max(t1.a2) max(t2.a1) zzz BBB drop table t1,t2; CREATE TABLE t1 (a int, b int); select count(b), sum(b), avg(b), std(b), min(b), max(b), bit_and(b), bit_or(b) from t1; count(b) sum(b) avg(b) std(b) min(b) max(b) bit_and(b) bit_or(b) 0 NULL NULL NULL NULL NULL 18446744073709551615 0 select a,count(b), sum(b), avg(b), std(b), min(b), max(b), bit_and(b), bit_or(b) from t1 group by a; a count(b) sum(b) avg(b) std(b) min(b) max(b) bit_and(b) bit_or(b) insert into t1 values (1,null); select a,count(b), sum(b), avg(b), std(b), min(b), max(b), bit_and(b), bit_or(b) from t1 group by a; a count(b) sum(b) avg(b) std(b) min(b) max(b) bit_and(b) bit_or(b) 1 0 NULL NULL NULL NULL NULL 18446744073709551615 0 insert into t1 values (1,null); insert into t1 values (2,null); select a,count(b), sum(b), avg(b), std(b), min(b), max(b), bit_and(b), bit_or(b) from t1 group by a; a count(b) sum(b) avg(b) std(b) min(b) max(b) bit_and(b) bit_or(b) 1 0 NULL NULL NULL NULL NULL 18446744073709551615 0 2 0 NULL NULL NULL NULL NULL 18446744073709551615 0 select SQL_BIG_RESULT a,count(b), sum(b), avg(b), std(b), min(b), max(b), bit_and(b), bit_or(b) from t1 group by a; a count(b) sum(b) avg(b) std(b) min(b) max(b) bit_and(b) bit_or(b) 1 0 NULL NULL NULL NULL NULL 18446744073709551615 0 2 0 NULL NULL NULL NULL NULL 18446744073709551615 0 insert into t1 values (2,1); select a,count(b), sum(b), avg(b), std(b), min(b), max(b), bit_and(b), bit_or(b) from t1 group by a; a count(b) sum(b) avg(b) std(b) min(b) max(b) bit_and(b) bit_or(b) 1 0 NULL NULL NULL NULL NULL 18446744073709551615 0 2 1 1 1.00000 0 1 1 1 1 select SQL_BIG_RESULT a,count(b), sum(b), avg(b), std(b), min(b), max(b), bit_and(b), bit_or(b) from t1 group by a; a count(b) sum(b) avg(b) std(b) min(b) max(b) bit_and(b) bit_or(b) 1 0 NULL NULL NULL NULL NULL 18446744073709551615 0 2 1 1 1.00000 0 1 1 1 1 insert into t1 values (3,1); select a,count(b), sum(b), avg(b), std(b), min(b), max(b), bit_and(b), bit_or(b) from t1 group by a; a count(b) sum(b) avg(b) std(b) min(b) max(b) bit_and(b) bit_or(b) 1 0 NULL NULL NULL NULL NULL 18446744073709551615 0 2 1 1 1.00000 0 1 1 1 1 3 1 1 1.00000 0 1 1 1 1 select SQL_BIG_RESULT a,count(b), sum(b), avg(b), std(b), min(b), max(b), bit_and(b), bit_or(b), bit_xor(b) from t1 group by a; a count(b) sum(b) avg(b) std(b) min(b) max(b) bit_and(b) bit_or(b) bit_xor(b) 1 0 NULL NULL NULL NULL NULL 18446744073709551615 0 0 2 1 1 1.00000 0 1 1 1 1 1 3 1 1 1.00000 0 1 1 1 1 1 explain extended select SQL_BIG_RESULT a,count(b), sum(b), avg(b), std(b), min(b), max(b), bit_and(b), bit_or(b), bit_xor(b) from t1 group by a; 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 filesort Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select sql_big_result `test`.`t1`.`a` AS `a`,count(`test`.`t1`.`b`) AS `count(b)`,sum(`test`.`t1`.`b`) AS `sum(b)`,avg(`test`.`t1`.`b`) AS `avg(b)`,std(`test`.`t1`.`b`) AS `std(b)`,min(`test`.`t1`.`b`) AS `min(b)`,max(`test`.`t1`.`b`) AS `max(b)`,bit_and(`test`.`t1`.`b`) AS `bit_and(b)`,bit_or(`test`.`t1`.`b`) AS `bit_or(b)`,bit_xor(`test`.`t1`.`b`) AS `bit_xor(b)` from `test`.`t1` group by `test`.`t1`.`a` drop table t1; create table t1 (col int); insert into t1 values (-1), (-2), (-3); select bit_and(col), bit_or(col) from t1; bit_and(col) bit_or(col) 18446744073709551612 18446744073709551615 select SQL_BIG_RESULT bit_and(col), bit_or(col) from t1 group by col; bit_and(col) bit_or(col) 18446744073709551613 18446744073709551613 18446744073709551614 18446744073709551614 18446744073709551615 18446744073709551615 drop table t1; create table t1 (a int); select avg(2) from t1; avg(2) NULL drop table t1; create table t1( a1 char(3) primary key, a2 smallint, a3 char(3), a4 real, a5 date, key k1(a2,a3), key k2(a4 desc,a1), key k3(a5,a1) ); create table t2( a1 char(3) primary key, a2 char(17), a3 char(2), a4 char(3), key k1(a3, a2), key k2(a4) ); insert into t1 values('AME',0,'SEA',0.100,date'1942-02-19'); insert into t1 values('HBR',1,'SEA',0.085,date'1948-03-05'); insert into t1 values('BOT',2,'SEA',0.085,date'1951-11-29'); insert into t1 values('BMC',3,'SEA',0.085,date'1958-09-08'); insert into t1 values('TWU',0,'LAX',0.080,date'1969-10-05'); insert into t1 values('BDL',0,'DEN',0.080,date'1960-11-27'); insert into t1 values('DTX',1,'NYC',0.080,date'1961-05-04'); insert into t1 values('PLS',1,'WDC',0.075,date'1949-01-02'); insert into t1 values('ZAJ',2,'CHI',0.075,date'1960-06-15'); insert into t1 values('VVV',2,'MIN',0.075,date'1959-06-28'); insert into t1 values('GTM',3,'DAL',0.070,date'1977-09-23'); insert into t1 values('SSJ',null,'CHI',null,date'1974-03-19'); insert into t1 values('KKK',3,'ATL',null,null); insert into t1 values('XXX',null,'MIN',null,null); insert into t1 values('WWW',1,'LED',null,null); insert into t2 values('TKF','Seattle','WA','AME'); insert into t2 values('LCC','Los Angeles','CA','TWU'); insert into t2 values('DEN','Denver','CO','BDL'); insert into t2 values('SDC','San Diego','CA','TWU'); insert into t2 values('NOL','New Orleans','LA','GTM'); insert into t2 values('LAK','Los Angeles','CA','TWU'); insert into t2 values('AAA','AAA','AA','AME'); select * from t1; a1 a2 a3 a4 a5 AME 0 SEA 0.1 1942-02-19 HBR 1 SEA 0.085 1948-03-05 BOT 2 SEA 0.085 1951-11-29 BMC 3 SEA 0.085 1958-09-08 TWU 0 LAX 0.08 1969-10-05 BDL 0 DEN 0.08 1960-11-27 DTX 1 NYC 0.08 1961-05-04 PLS 1 WDC 0.075 1949-01-02 ZAJ 2 CHI 0.075 1960-06-15 VVV 2 MIN 0.075 1959-06-28 GTM 3 DAL 0.07 1977-09-23 SSJ NULL CHI NULL 1974-03-19 KKK 3 ATL NULL NULL XXX NULL MIN NULL NULL WWW 1 LED NULL NULL select * from t2; a1 a2 a3 a4 TKF Seattle WA AME LCC Los Angeles CA TWU DEN Denver CO BDL SDC San Diego CA TWU NOL New Orleans LA GTM LAK Los Angeles CA TWU AAA AAA AA AME explain select min(a1) from t1; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a1`) AS `min(a1)` from `test`.`t1` select min(a1) from t1; min(a1) AME explain select max(a4) from t1; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select max(`test`.`t1`.`a4`) AS `max(a4)` from `test`.`t1` select max(a4) from t1; max(a4) 0.1 explain select min(a5), max(a5) from t1; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a5`) AS `min(a5)`,max(`test`.`t1`.`a5`) AS `max(a5)` from `test`.`t1` select min(a5), max(a5) from t1; min(a5) max(a5) 1942-02-19 1977-09-23 explain select min(a3) from t1 where a2 = 2; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a3`) AS `min(a3)` from `test`.`t1` where multiple equal(2, `test`.`t1`.`a2`) select min(a3) from t1 where a2 = 2; min(a3) CHI explain select min(a1), max(a1) from t1 where a4 = 0.080; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a1`) AS `min(a1)`,max(`test`.`t1`.`a1`) AS `max(a1)` from `test`.`t1` where (`test`.`t1`.`a4` = 0.080) select min(a1), max(a1) from t1 where a4 = 0.080; min(a1) max(a1) BDL TWU explain select min(t1.a5), max(t2.a3) from t1, t2; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a5`) AS `min(t1.a5)`,max(`test`.`t2`.`a3`) AS `max(t2.a3)` from `test`.`t1` join `test`.`t2` select min(t1.a5), max(t2.a3) from t1, t2; min(t1.a5) max(t2.a3) 1942-02-19 WA explain select min(t1.a3), max(t2.a2) from t1, t2 where t1.a2 = 0 and t2.a3 = 'CA'; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a3`) AS `min(t1.a3)`,max(`test`.`t2`.`a2`) AS `max(t2.a2)` from `test`.`t1` join `test`.`t2` where (multiple equal(0, `test`.`t1`.`a2`) and multiple equal('CA', `test`.`t2`.`a3`)) select min(t1.a3), max(t2.a2) from t1, t2 where t1.a2 = 0 and t2.a3 = 'CA'; min(t1.a3) max(t2.a2) DEN San Diego explain select min(a1) from t1 where a1 > 'KKK'; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a1`) AS `min(a1)` from `test`.`t1` where (`test`.`t1`.`a1` > 'KKK') select min(a1) from t1 where a1 > 'KKK'; min(a1) PLS explain select min(a1) from t1 where a1 >= 'KKK'; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a1`) AS `min(a1)` from `test`.`t1` where (`test`.`t1`.`a1` >= 'KKK') select min(a1) from t1 where a1 >= 'KKK'; min(a1) KKK explain select max(a3) from t1 where a2 = 2 and a3 < 'SEA'; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select max(`test`.`t1`.`a3`) AS `max(a3)` from `test`.`t1` where ((`test`.`t1`.`a3` < 'SEA') and multiple equal(2, `test`.`t1`.`a2`)) select max(a3) from t1 where a2 = 2 and a3 < 'SEA'; max(a3) MIN explain select max(a5) from t1 where a5 < date'1970-01-01'; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select max(`test`.`t1`.`a5`) AS `max(a5)` from `test`.`t1` where (`test`.`t1`.`a5` < DATE'1970-01-01') select max(a5) from t1 where a5 < date'1970-01-01'; max(a5) 1969-10-05 explain select max(a3) from t1 where a2 is null; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select max(`test`.`t1`.`a3`) AS `max(a3)` from `test`.`t1` where isnull(`test`.`t1`.`a2`) select max(a3) from t1 where a2 is null; max(a3) MIN explain select max(a3) from t1 where a2 = 0 and a3 between 'K' and 'Q'; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select max(`test`.`t1`.`a3`) AS `max(a3)` from `test`.`t1` where ((`test`.`t1`.`a3` between 'K' and 'Q') and multiple equal(0, `test`.`t1`.`a2`)) select max(a3) from t1 where a2 = 0 and a3 between 'K' and 'Q'; max(a3) LAX explain select min(a1), max(a1) from t1 where a1 between 'A' and 'P'; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a1`) AS `min(a1)`,max(`test`.`t1`.`a1`) AS `max(a1)` from `test`.`t1` where (`test`.`t1`.`a1` between 'A' and 'P') select min(a1), max(a1) from t1 where a1 between 'A' and 'P'; min(a1) max(a1) AME KKK explain select max(a3) from t1 where a3 < 'SEA' and a2 = 2 and a3 <= 'MIN'; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select max(`test`.`t1`.`a3`) AS `max(a3)` from `test`.`t1` where ((`test`.`t1`.`a3` < 'SEA') and (`test`.`t1`.`a3` <= 'MIN') and multiple equal(2, `test`.`t1`.`a2`)) select max(a3) from t1 where a3 < 'SEA' and a2 = 2 and a3 <= 'MIN'; max(a3) MIN explain select max(a3) from t1 where a3 = 'MIN' and a2 = 2; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select max(`test`.`t1`.`a3`) AS `max(a3)` from `test`.`t1` where (multiple equal('MIN', `test`.`t1`.`a3`) and multiple equal(2, `test`.`t1`.`a2`)) select max(a3) from t1 where a3 = 'MIN' and a2 = 2; max(a3) MIN explain select max(a3) from t1 where a3 = 'DEN' and a2 = 2; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL No matching min/max row Warnings: Note 1003 /* select#1 */ select max(`test`.`t1`.`a3`) AS `max(a3)` from `test`.`t1` where (multiple equal('DEN', `test`.`t1`.`a3`) and multiple equal(2, `test`.`t1`.`a2`)) select max(a3) from t1 where a3 = 'DEN' and a2 = 2; max(a3) NULL explain select max(t1.a3), min(t2.a2) from t1, t2 where t1.a2 = 2 and t1.a3 < 'MIN' and t2.a3 = 'CA'; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select max(`test`.`t1`.`a3`) AS `max(t1.a3)`,min(`test`.`t2`.`a2`) AS `min(t2.a2)` from `test`.`t1` join `test`.`t2` where ((`test`.`t1`.`a3` < 'MIN') and multiple equal(2, `test`.`t1`.`a2`) and multiple equal('CA', `test`.`t2`.`a3`)) select max(t1.a3), min(t2.a2) from t1, t2 where t1.a2 = 2 and t1.a3 < 'MIN' and t2.a3 = 'CA'; max(t1.a3) min(t2.a2) CHI Los Angeles explain select max(a3) from t1 where a2 is null and a2 = 2; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE Warnings: Note 1003 /* select#1 */ select max(`test`.`t1`.`a3`) AS `max(a3)` from `test`.`t1` where 0 select max(a3) from t1 where a2 is null and a2 = 2; max(a3) NULL explain select max(a2) from t1 where a2 >= 1; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select max(`test`.`t1`.`a2`) AS `max(a2)` from `test`.`t1` where (`test`.`t1`.`a2` >= 1) select max(a2) from t1 where a2 >= 1; max(a2) 3 explain select min(a3) from t1 where a2 = 2 and a3 < 'SEA'; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a3`) AS `min(a3)` from `test`.`t1` where ((`test`.`t1`.`a3` < 'SEA') and multiple equal(2, `test`.`t1`.`a2`)) select min(a3) from t1 where a2 = 2 and a3 < 'SEA'; min(a3) CHI explain select min(a3) from t1 where a2 = 4; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL No matching min/max row Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a3`) AS `min(a3)` from `test`.`t1` where multiple equal(4, `test`.`t1`.`a2`) select min(a3) from t1 where a2 = 4; min(a3) NULL explain select min(a3) from t1 where a2 = 2 and a3 > 'SEA'; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL No matching min/max row Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a3`) AS `min(a3)` from `test`.`t1` where ((`test`.`t1`.`a3` > 'SEA') and multiple equal(2, `test`.`t1`.`a2`)) select min(a3) from t1 where a2 = 2 and a3 > 'SEA'; min(a3) NULL explain select (min(a4)+max(a4))/2 from t1; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select ((min(`test`.`t1`.`a4`) + max(`test`.`t1`.`a4`)) / 2) AS `(min(a4)+max(a4))/2` from `test`.`t1` select (min(a4)+max(a4))/2 from t1; (min(a4)+max(a4))/2 0.085 explain select min(a3) from t1 where 2 = a2; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a3`) AS `min(a3)` from `test`.`t1` where multiple equal(2, `test`.`t1`.`a2`) select min(a3) from t1 where 2 = a2; min(a3) CHI explain select max(a3) from t1 where a2 = 2 and 'SEA' > a3; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select max(`test`.`t1`.`a3`) AS `max(a3)` from `test`.`t1` where (('SEA' > `test`.`t1`.`a3`) and multiple equal(2, `test`.`t1`.`a2`)) select max(a3) from t1 where a2 = 2 and 'SEA' > a3; max(a3) MIN explain select max(a3) from t1 where a2 = 2 and 'SEA' < a3; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL No matching min/max row Warnings: Note 1003 /* select#1 */ select max(`test`.`t1`.`a3`) AS `max(a3)` from `test`.`t1` where (('SEA' < `test`.`t1`.`a3`) and multiple equal(2, `test`.`t1`.`a2`)) select max(a3) from t1 where a2 = 2 and 'SEA' < a3; max(a3) NULL explain select min(a3) from t1 where a2 = 2 and a3 >= 'CHI'; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a3`) AS `min(a3)` from `test`.`t1` where ((`test`.`t1`.`a3` >= 'CHI') and multiple equal(2, `test`.`t1`.`a2`)) select min(a3) from t1 where a2 = 2 and a3 >= 'CHI'; min(a3) CHI explain select min(a3) from t1 where a2 = 2 and a3 >= 'CHI' and a3 < 'SEA'; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a3`) AS `min(a3)` from `test`.`t1` where ((`test`.`t1`.`a3` >= 'CHI') and (`test`.`t1`.`a3` < 'SEA') and multiple equal(2, `test`.`t1`.`a2`)) select min(a3) from t1 where a2 = 2 and a3 >= 'CHI' and a3 < 'SEA'; min(a3) CHI explain select min(a3) from t1 where a2 = 2 and a3 >= 'CHI' and a3 = 'MIN'; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a3`) AS `min(a3)` from `test`.`t1` where (multiple equal(2, `test`.`t1`.`a2`) and multiple equal('MIN', `test`.`t1`.`a3`)) select min(a3) from t1 where a2 = 2 and a3 >= 'CHI' and a3 = 'MIN'; min(a3) MIN explain select min(a3) from t1 where a2 = 2 and a3 >= 'SEA' and a3 = 'MIN'; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a3`) AS `min(a3)` from `test`.`t1` where 0 select min(a3) from t1 where a2 = 2 and a3 >= 'SEA' and a3 = 'MIN'; min(a3) NULL explain select min(t1.a1), min(t2.a4) from t1,t2 where t1.a1 < 'KKK' and t2.a4 < 'KKK'; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a1`) AS `min(t1.a1)`,min(`test`.`t2`.`a4`) AS `min(t2.a4)` from `test`.`t1` join `test`.`t2` where ((`test`.`t1`.`a1` < 'KKK') and (`test`.`t2`.`a4` < 'KKK')) select min(t1.a1), min(t2.a4) from t1,t2 where t1.a1 < 'KKK' and t2.a4 < 'KKK'; min(t1.a1) min(t2.a4) AME AME explain select min(a1) from t1 where a1 > 'KKK' or a1 < 'XXX'; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index PRIMARY PRIMARY 3 NULL 15 55.55 Using where; Using index Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a1`) AS `min(a1)` from `test`.`t1` where ((`test`.`t1`.`a1` > 'KKK') or (`test`.`t1`.`a1` < 'XXX')) explain select min(a1) from t1 where a1 != 'KKK'; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index PRIMARY PRIMARY 3 NULL 15 100.00 Using where; Using index Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a1`) AS `min(a1)` from `test`.`t1` where (`test`.`t1`.`a1` <> 'KKK') explain select max(a3) from t1 where a2 < 2 and a3 < 'SEA'; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL range k1 k1 3 NULL 6 33.33 Using where; Using index Warnings: Note 1003 /* select#1 */ select max(`test`.`t1`.`a3`) AS `max(a3)` from `test`.`t1` where ((`test`.`t1`.`a2` < 2) and (`test`.`t1`.`a3` < 'SEA')) explain select max(t1.a3), min(t2.a2) from t1, t2 where t1.a2 = 2 and t1.a3 < 'MIN' and t2.a3 > 'CA'; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL range k1 k1 7 NULL 1 100.00 Using where; Using index 1 SIMPLE t2 NULL range k1 k1 3 NULL 4 100.00 Using where; Using index; Using join buffer (Block Nested Loop) Warnings: Note 1003 /* select#1 */ select max(`test`.`t1`.`a3`) AS `max(t1.a3)`,min(`test`.`t2`.`a2`) AS `min(t2.a2)` from `test`.`t1` join `test`.`t2` where ((`test`.`t1`.`a2` = 2) and (`test`.`t1`.`a3` < 'MIN') and (`test`.`t2`.`a3` > 'CA')) explain select min(a4 - 0.01) from t1; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index NULL k2 12 NULL 15 100.00 Using index Warnings: Note 1003 /* select#1 */ select min((`test`.`t1`.`a4` - 0.01)) AS `min(a4 - 0.01)` from `test`.`t1` explain select max(a4 + 0.01) from t1; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index NULL k2 12 NULL 15 100.00 Using index Warnings: Note 1003 /* select#1 */ select max((`test`.`t1`.`a4` + 0.01)) AS `max(a4 + 0.01)` from `test`.`t1` explain select min(a3) from t1 where (a2 +1 ) is null; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index NULL k1 7 NULL 15 100.00 Using where; Using index Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a3`) AS `min(a3)` from `test`.`t1` where isnull((`test`.`t1`.`a2` + 1)) explain select min(a3) from t1 where (a2 + 1) = 2; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index NULL k1 7 NULL 15 100.00 Using where; Using index Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a3`) AS `min(a3)` from `test`.`t1` where ((`test`.`t1`.`a2` + 1) = 2) explain select min(a3) from t1 where 2 = (a2 + 1); id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index NULL k1 7 NULL 15 100.00 Using where; Using index Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a3`) AS `min(a3)` from `test`.`t1` where (2 = (`test`.`t1`.`a2` + 1)) explain select min(a2) from t1 where a2 < 2 * a2 - 8; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index NULL k1 7 NULL 15 33.33 Using where; Using index Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a2`) AS `min(a2)` from `test`.`t1` where (`test`.`t1`.`a2` < ((2 * `test`.`t1`.`a2`) - 8)) explain select min(a1) from t1 where a1 between a3 and 'KKK'; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL PRIMARY NULL NULL NULL 15 11.11 Using where Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a1`) AS `min(a1)` from `test`.`t1` where (`test`.`t1`.`a1` between `test`.`t1`.`a3` and 'KKK') explain select min(a4) from t1 where (a4 + 0.01) between 0.07 and 0.08; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL index NULL k2 12 NULL 15 100.00 Using where; Using index Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a4`) AS `min(a4)` from `test`.`t1` where ((`test`.`t1`.`a4` + 0.01) between 0.07 and 0.08) explain select concat(min(t1.a1),min(t2.a4)) from t1, t2 where t2.a4 <> 'AME'; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL range k2 k2 4 NULL 6 100.00 Using where; Using index 1 SIMPLE t1 NULL index NULL PRIMARY 3 NULL 15 100.00 Using index; Using join buffer (Block Nested Loop) Warnings: Note 1003 /* select#1 */ select concat(min(`test`.`t1`.`a1`),min(`test`.`t2`.`a4`)) AS `concat(min(t1.a1),min(t2.a4))` from `test`.`t1` join `test`.`t2` where (`test`.`t2`.`a4` <> 'AME') drop table t1, t2; create table t1 (a char(10)); insert into t1 values ('a'),('b'),('c'); select coercibility(max(a)) from t1; coercibility(max(a)) 2 drop table t1; create table t1 (a char character set latin2); insert into t1 values ('a'),('b'); select charset(max(a)), coercibility(max(a)), charset(min(a)), coercibility(min(a)) from t1; charset(max(a)) coercibility(max(a)) charset(min(a)) coercibility(min(a)) latin2 2 latin2 2 show create table t1; Table Create Table t1 CREATE TABLE `t1` ( `a` char(1) CHARACTER SET latin2 DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 create table t2 select max(a),min(a) from t1; show create table t2; Table Create Table t2 CREATE TABLE `t2` ( `max(a)` char(1) CHARACTER SET latin2 DEFAULT NULL, `min(a)` char(1) CHARACTER SET latin2 DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 drop table t2; create table t2 select concat(a) from t1; show create table t2; Table Create Table t2 CREATE TABLE `t2` ( `concat(a)` varchar(1) CHARACTER SET latin2 DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 drop table t2,t1; create table t1 (a int); insert into t1 values (1); select max(a) as b from t1 having b=1; b 1 select a from t1 having a=1; a 1 drop table t1; create table t1 (a int); select variance(2) from t1; variance(2) NULL select stddev(2) from t1; stddev(2) NULL drop table t1; create table t1 (a int); insert into t1 values (1),(2); prepare stmt1 from 'SELECT COUNT(*) FROM t1'; execute stmt1; COUNT(*) 2 execute stmt1; COUNT(*) 2 execute stmt1; COUNT(*) 2 deallocate prepare stmt1; drop table t1; create table t1 (a int, primary key(a)); insert into t1 values (1),(2); prepare stmt1 from 'SELECT max(a) FROM t1'; execute stmt1; max(a) 2 execute stmt1; max(a) 2 execute stmt1; max(a) 2 deallocate prepare stmt1; drop table t1; CREATE TABLE t1 (a int primary key); INSERT INTO t1 VALUES (1),(2),(3),(4); SELECT MAX(a) FROM t1 WHERE a > 5; MAX(a) NULL SELECT MIN(a) FROM t1 WHERE a < 0; MIN(a) NULL DROP TABLE t1; CREATE TABLE t1 ( id int(10) unsigned NOT NULL auto_increment, val enum('one','two','three') NOT NULL default 'one', PRIMARY KEY (id) ) ENGINE=MyISAM DEFAULT CHARSET=utf8; INSERT INTO t1 VALUES (1,'one'),(2,'two'),(3,'three'),(4,'one'),(5,'two'); select val, count(*) from t1 group by val; val count(*) one 2 two 2 three 1 drop table t1; CREATE TABLE t1 ( id int(10) unsigned NOT NULL auto_increment, val set('one','two','three') NOT NULL default 'one', PRIMARY KEY (id) ) ENGINE=MyISAM DEFAULT CHARSET=utf8; INSERT INTO t1 VALUES (1,'one'),(2,'two'),(3,'three'),(4,'one'),(5,'two'); select val, count(*) from t1 group by val; val count(*) one 2 two 2 three 1 drop table t1; create table t1(a int, b datetime); insert into t1 values (1, NOW()), (2, NOW()); create table t2 select MAX(b) from t1 group by a; show create table t2; Table Create Table t2 CREATE TABLE `t2` ( `MAX(b)` datetime DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 drop table t1, t2; 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(f1 datetime); insert into t1 values (now()); create table t2 select f2 from (select max(now()) f2 from t1) a; show columns from t2; Field Type Null Key Default Extra f2 datetime YES NULL drop table t2; create table t2 select f2 from (select now() f2 from t1) a; show columns from t2; Field Type Null Key Default Extra f2 datetime NO 0000-00-00 00:00:00 drop table t2, t1; SET sql_mode = default; CREATE TABLE t1( id int PRIMARY KEY, a int, b int, INDEX i_b_id(a,b,id), INDEX i_id(a,id) ); INSERT INTO t1 VALUES (1,1,4), (2,2,1), (3,1,3), (4,2,1), (5,1,1); SELECT MAX(id) FROM t1 WHERE id < 3 AND a=2 AND b=6; MAX(id) NULL DROP TABLE t1; CREATE TABLE t1( id int PRIMARY KEY, a int, b int, INDEX i_id(a,id), INDEX i_b_id(a,b,id) ); INSERT INTO t1 VALUES (1,1,4), (2,2,1), (3,1,3), (4,2,1), (5,1,1); SELECT MAX(id) FROM t1 WHERE id < 3 AND a=2 AND b=6; MAX(id) NULL DROP TABLE t1; CREATE TABLE t1 (id int PRIMARY KEY, b char(3), INDEX(b)); INSERT INTO t1 VALUES (1,'xx'), (2,'aa'); SELECT * FROM t1; id b 1 xx 2 aa SELECT MAX(b) FROM t1 WHERE b < 'ppppp'; MAX(b) aa SHOW WARNINGS; Level Code Message SELECT MAX(b) FROM t1 WHERE b < 'pp'; MAX(b) aa DROP TABLE t1; CREATE TABLE t1 (id int PRIMARY KEY, b char(16), INDEX(b(4))); INSERT INTO t1 VALUES (1, 'xxxxbbbb'), (2, 'xxxxaaaa'); SELECT MAX(b) FROM t1; MAX(b) xxxxbbbb EXPLAIN SELECT MAX(b) FROM t1; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 2 100.00 NULL Warnings: Note 1003 /* select#1 */ select max(`test`.`t1`.`b`) AS `MAX(b)` from `test`.`t1` DROP TABLE t1; CREATE TABLE t1 (id int , b varchar(512), INDEX(b(250))) COLLATE latin1_bin; INSERT INTO t1 VALUES (1,CONCAT(REPEAT('_', 250), "qq")), (1,CONCAT(REPEAT('_', 250), "zz")), (1,CONCAT(REPEAT('_', 250), "aa")), (1,CONCAT(REPEAT('_', 250), "ff")); SELECT MAX(b) FROM t1; MAX(b) __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________zz EXPLAIN SELECT MAX(b) FROM t1; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 4 100.00 NULL Warnings: Note 1003 /* select#1 */ select max(`test`.`t1`.`b`) AS `MAX(b)` from `test`.`t1` DROP TABLE t1; CREATE TABLE t1 (a INT, b INT); INSERT INTO t1 VALUES (1,1),(1,2),(2,3); SELECT (SELECT COUNT(DISTINCT t1.b)) FROM t1 GROUP BY t1.a; (SELECT COUNT(DISTINCT t1.b)) 2 1 SELECT (SELECT COUNT(DISTINCT 12)) FROM t1 GROUP BY t1.a; (SELECT COUNT(DISTINCT 12)) 1 1 SELECT AVG(2), BIT_AND(2), BIT_OR(2), BIT_XOR(2), COUNT(*), COUNT(12), COUNT(DISTINCT 12), MIN(2),MAX(2),STD(2), VARIANCE(2),SUM(2), GROUP_CONCAT(2),GROUP_CONCAT(DISTINCT 2); AVG(2) BIT_AND(2) BIT_OR(2) BIT_XOR(2) COUNT(*) COUNT(12) COUNT(DISTINCT 12) MIN(2) MAX(2) STD(2) VARIANCE(2) SUM(2) GROUP_CONCAT(2) GROUP_CONCAT(DISTINCT 2) 2.00000 2 2 2 1 1 1 2 2 0 0 2 2 2 DROP TABLE t1; create table t2 (ff double); insert into t2 values (2.2); select cast(sum(distinct ff) as decimal(5,2)) from t2; cast(sum(distinct ff) as decimal(5,2)) 2.20 select cast(sum(distinct ff) as signed) from t2; cast(sum(distinct ff) as signed) 2 select cast(variance(ff) as decimal(10,3)) from t2; cast(variance(ff) as decimal(10,3)) 0.000 select cast(min(ff) as decimal(5,2)) from t2; cast(min(ff) as decimal(5,2)) 2.20 create table t1 (df decimal(5,1)); insert into t1 values(1.1); insert into t1 values(2.2); select cast(sum(distinct df) as signed) from t1; cast(sum(distinct df) as signed) 3 select cast(min(df) as signed) from t1; cast(min(df) as signed) 1 select 1e8 * sum(distinct df) from t1; 1e8 * sum(distinct df) 330000000 select 1e8 * min(df) from t1; 1e8 * min(df) 110000000.00000001 create table t3 (ifl int); insert into t3 values(1), (2); select cast(min(ifl) as decimal(5,2)) from t3; cast(min(ifl) as decimal(5,2)) 1.00 drop table t1, t2, t3; CREATE TABLE t1 (id int(11),value1 float(10,2)); INSERT INTO t1 VALUES (1,0.00),(1,1.00), (1,2.00), (2,10.00), (2,11.00), (2,12.00), (2,13.00); select id, stddev_pop(value1), var_pop(value1), stddev_samp(value1), var_samp(value1) from t1 group by id; id stddev_pop(value1) var_pop(value1) stddev_samp(value1) var_samp(value1) 1 0.816496580927726 0.6666666666666666 1 1 2 1.118033988749895 1.25 1.2909944487358056 1.6666666666666667 DROP TABLE t1; CREATE TABLE t1 (col1 decimal(16,12)); INSERT INTO t1 VALUES (-5.00000000001),(-5.00000000002),(-5.00000000003),(-5.00000000000),(-5.00000000001),(-5.00000000002); insert into t1 select * from t1; select col1,count(col1),sum(col1),avg(col1) from t1 group by col1; col1 count(col1) sum(col1) avg(col1) -5.000000000030 2 -10.000000000060 -5.00000000003000000 -5.000000000020 4 -20.000000000080 -5.00000000002000000 -5.000000000010 4 -20.000000000040 -5.00000000001000000 -5.000000000000 2 -10.000000000000 -5.00000000000000000 DROP TABLE t1; create table t1 (col1 decimal(16,12)); insert into t1 values (-5.00000000001); insert into t1 values (-5.00000000001); select col1,sum(col1),max(col1),min(col1) from t1 group by col1; col1 sum(col1) max(col1) min(col1) -5.000000000010 -10.000000000020 -5.000000000010 -5.000000000010 delete from t1; insert into t1 values (5.00000000001); insert into t1 values (5.00000000001); select col1,sum(col1),max(col1),min(col1) from t1 group by col1; col1 sum(col1) max(col1) min(col1) 5.000000000010 10.000000000020 5.000000000010 5.000000000010 DROP TABLE t1; CREATE TABLE t1 (a VARCHAR(400)); INSERT INTO t1 (a) VALUES ("A"), ("a"), ("a "), ("a "), ("B"), ("b"), ("b "), ("b "); SELECT COUNT(DISTINCT a) FROM t1; COUNT(DISTINCT a) 2 DROP TABLE t1; CREATE TABLE t1 (a int, b int, c int); INSERT INTO t1 (a, b, c) VALUES (1,1,1), (1,1,2), (1,1,3), (1,2,1), (1,2,2), (1,2,3), (1,3,1), (1,3,2), (1,3,3), (2,1,1), (2,1,2), (2,1,3), (2,2,1), (2,2,2), (2,2,3), (2,3,1), (2,3,2), (2,3,3), (3,1,1), (3,1,2), (3,1,3), (3,2,1), (3,2,2), (3,2,3), (3,3,1), (3,3,2), (3,3,3); SELECT b/c as v, a FROM t1 ORDER BY v, a; v a 0.33333 1 0.33333 2 0.33333 3 0.50000 1 0.50000 2 0.50000 3 0.66667 1 0.66667 2 0.66667 3 1.00000 1 1.00000 1 1.00000 1 1.00000 2 1.00000 2 1.00000 2 1.00000 3 1.00000 3 1.00000 3 1.50000 1 1.50000 2 1.50000 3 2.00000 1 2.00000 2 2.00000 3 3.00000 1 3.00000 2 3.00000 3 SELECT b/c as v, SUM(a) FROM t1 GROUP BY v; v SUM(a) 0.33333 6 0.50000 6 0.66667 6 1.00000 18 1.50000 6 2.00000 6 3.00000 6 SELECT SUM(a) FROM t1 GROUP BY b/c; SUM(a) 6 6 6 18 6 6 6 DROP TABLE t1; set div_precision_increment= @sav_dpi; CREATE TABLE t1 (a INT PRIMARY KEY, b INT); INSERT INTO t1 VALUES (1,1), (2,2); CREATE TABLE t2 (a INT PRIMARY KEY, b INT); INSERT INTO t2 VALUES (1,1), (3,3); SELECT SQL_NO_CACHE (SELECT SUM(c.a) FROM t1 ttt, t2 ccc WHERE ttt.a = ccc.b AND ttt.a = t.a GROUP BY ttt.a) AS minid FROM t1 t, t2 c WHERE t.a = c.b; minid 1 Warnings: Warning 1681 'SQL_NO_CACHE' is deprecated and will be removed in a future release. DROP TABLE t1,t2; create table t1 select variance(0); show create table t1; Table Create Table t1 CREATE TABLE `t1` ( `variance(0)` double DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 drop table t1; create table t1 select stddev(0); show create table t1; Table Create Table t1 CREATE TABLE `t1` ( `stddev(0)` double DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 drop table t1; create table bug22555 (i smallint primary key auto_increment, s1 smallint, s2 smallint, e decimal(30,10), o double); insert into bug22555 (s1, s2, e, o) values (53, 78, 11.4276528, 6.828112), (17, 78, 5.916793, 1.8502951), (18, 76, 2.679231, 9.17975591), (31, 62, 6.07831, 0.1), (19, 41, 5.37463, 15.1), (83, 73, 14.567426, 7.959222), (92, 53, 6.10151, 13.1856852), (7, 12, 13.92272, 3.442007), (92, 35, 11.95358909, 6.01376678), (38, 84, 2.572, 7.904571); select std(s1/s2) from bug22555 group by i; std(s1/s2) 0 0 0 0 0 0 0 0 0 0 select std(e) from bug22555 group by i; std(e) 0 0 0 0 0 0 0 0 0 0 select std(o) from bug22555 group by i; std(o) 0 0 0 0 0 0 0 0 0 0 drop table bug22555; create table bug22555 (i smallint, s1 smallint, s2 smallint, o1 double, o2 double, e1 decimal, e2 decimal); insert into bug22555 values (1,53,78,53,78,53,78),(2,17,78,17,78,17,78),(3,18,76,18,76,18,76); select i, count(*) from bug22555 group by i; i count(*) 1 1 2 1 3 1 select std(s1/s2) from bug22555 where i=1; std(s1/s2) 0 select std(s1/s2) from bug22555 where i=2; std(s1/s2) 0 select std(s1/s2) from bug22555 where i=3; std(s1/s2) 0 select std(s1/s2) from bug22555 where i=1 group by i; std(s1/s2) 0 select std(s1/s2) from bug22555 where i=2 group by i; std(s1/s2) 0 select std(s1/s2) from bug22555 where i=3 group by i; std(s1/s2) 0 select std(s1/s2) from bug22555 group by i order by i; std(s1/s2) 0 0 0 select i, count(*), std(o1/o2) from bug22555 group by i order by i; i count(*) std(o1/o2) 1 1 0 2 1 0 3 1 0 select i, count(*), std(e1/e2) from bug22555 group by i order by i; i count(*) std(e1/e2) 1 1 0 2 1 0 3 1 0 set @saved_div_precision_increment=@@div_precision_increment; set div_precision_increment=19; select i, count(*), variance(s1/s2) from bug22555 group by i order by i; i count(*) variance(s1/s2) 1 1 0 2 1 0 3 1 0 select i, count(*), variance(o1/o2) from bug22555 group by i order by i; i count(*) variance(o1/o2) 1 1 0 2 1 0 3 1 0 select i, count(*), variance(e1/e2) from bug22555 group by i order by i; i count(*) variance(e1/e2) 1 1 0 2 1 0 3 1 0 select i, count(*), std(s1/s2) from bug22555 group by i order by i; i count(*) std(s1/s2) 1 1 0 2 1 0 3 1 0 select i, count(*), std(o1/o2) from bug22555 group by i order by i; i count(*) std(o1/o2) 1 1 0 2 1 0 3 1 0 select i, count(*), std(e1/e2) from bug22555 group by i order by i; i count(*) std(e1/e2) 1 1 0 2 1 0 3 1 0 set div_precision_increment=20; select i, count(*), variance(s1/s2) from bug22555 group by i order by i; i count(*) variance(s1/s2) 1 1 0 2 1 0 3 1 0 select i, count(*), variance(o1/o2) from bug22555 group by i order by i; i count(*) variance(o1/o2) 1 1 0 2 1 0 3 1 0 select i, count(*), variance(e1/e2) from bug22555 group by i order by i; i count(*) variance(e1/e2) 1 1 0 2 1 0 3 1 0 select i, count(*), std(s1/s2) from bug22555 group by i order by i; i count(*) std(s1/s2) 1 1 0 2 1 0 3 1 0 select i, count(*), std(o1/o2) from bug22555 group by i order by i; i count(*) std(o1/o2) 1 1 0 2 1 0 3 1 0 select i, count(*), std(e1/e2) from bug22555 group by i order by i; i count(*) std(e1/e2) 1 1 0 2 1 0 3 1 0 set @@div_precision_increment=@saved_div_precision_increment; insert into bug22555 values (1,53,78,53,78,53,78),(2,17,78,17,78,17,78),(3,18,76,18,76,18,76); insert into bug22555 values (1,53,78,53,78,53,78),(2,17,78,17,78,17,78),(3,18,76,18,76,18,76); insert into bug22555 values (1,53,78,53,78,53,78),(2,17,78,17,78,17,78),(3,18,76,18,76,18,76); select i, count(*), std(s1/s2) from bug22555 group by i order by i; i count(*) std(s1/s2) 1 4 0 2 4 0 3 4 0 select i, count(*), round(std(o1/o2), 16) from bug22555 group by i order by i; i count(*) round(std(o1/o2), 16) 1 4 0.0000000000000000 2 4 0.0000000000000000 3 4 0.0000000000000000 select i, count(*), std(e1/e2) from bug22555 group by i order by i; i count(*) std(e1/e2) 1 4 0 2 4 0 3 4 0 select std(s1/s2) from bug22555; std(s1/s2) 0.21325763593256278 select std(o1/o2) from bug22555; std(o1/o2) 0.2132576358664934 select std(e1/e2) from bug22555; std(e1/e2) 0.21325763593256278 set @saved_div_precision_increment=@@div_precision_increment; set div_precision_increment=19; select i, count(*), std(s1/s2) from bug22555 group by i order by i; i count(*) std(s1/s2) 1 4 0 2 4 0 3 4 0 select i, count(*), round(std(o1/o2), 16) from bug22555 group by i order by i; i count(*) round(std(o1/o2), 16) 1 4 0.0000000000000000 2 4 0.0000000000000000 3 4 0.0000000000000000 select i, count(*), std(e1/e2) from bug22555 group by i order by i; i count(*) std(e1/e2) 1 4 0 2 4 0 3 4 0 select round(std(s1/s2), 17) from bug22555; round(std(s1/s2), 17) 0.21325763586649340 select std(o1/o2) from bug22555; std(o1/o2) 0.2132576358664934 select round(std(e1/e2), 17) from bug22555; round(std(e1/e2), 17) 0.21325763586649340 set div_precision_increment=20; select i, count(*), std(s1/s2) from bug22555 group by i order by i; i count(*) std(s1/s2) 1 4 0 2 4 0 3 4 0 select i, count(*), round(std(o1/o2), 16) from bug22555 group by i order by i; i count(*) round(std(o1/o2), 16) 1 4 0.0000000000000000 2 4 0.0000000000000000 3 4 0.0000000000000000 select i, count(*), std(e1/e2) from bug22555 group by i order by i; i count(*) std(e1/e2) 1 4 0 2 4 0 3 4 0 select round(std(s1/s2), 17) from bug22555; round(std(s1/s2), 17) 0.21325763586649340 select std(o1/o2) from bug22555; std(o1/o2) 0.2132576358664934 select round(std(e1/e2), 17) from bug22555; round(std(e1/e2), 17) 0.21325763586649340 set @@div_precision_increment=@saved_div_precision_increment; drop table bug22555; create table bug22555 (s smallint, o double, e decimal); insert into bug22555 values (1,1,1),(2,2,2),(3,3,3),(6,6,6),(7,7,7); select var_samp(s), var_pop(s) from bug22555; var_samp(s) var_pop(s) 6.7 5.36 select var_samp(o), var_pop(o) from bug22555; var_samp(o) var_pop(o) 6.7 5.36 select var_samp(e), var_pop(e) from bug22555; var_samp(e) var_pop(e) 6.7 5.36 drop table bug22555; create table bug22555 (s smallint, o double, e decimal); insert into bug22555 values (null,null,null),(null,null,null); select var_samp(s) as 'null', var_pop(s) as 'null' from bug22555; null null NULL NULL select var_samp(o) as 'null', var_pop(o) as 'null' from bug22555; null null NULL NULL select var_samp(e) as 'null', var_pop(e) as 'null' from bug22555; null null NULL NULL insert into bug22555 values (1,1,1); select var_samp(s) as 'null', var_pop(s) as '0' from bug22555; null 0 NULL 0 select var_samp(o) as 'null', var_pop(o) as '0' from bug22555; null 0 NULL 0 select var_samp(e) as 'null', var_pop(e) as '0' from bug22555; null 0 NULL 0 insert into bug22555 values (2,2,2); select var_samp(s) as '0.5', var_pop(s) as '0.25' from bug22555; 0.5 0.25 0.5 0.25 select var_samp(o) as '0.5', var_pop(o) as '0.25' from bug22555; 0.5 0.25 0.5 0.25 select var_samp(e) as '0.5', var_pop(e) as '0.25' from bug22555; 0.5 0.25 0.5 0.25 drop table bug22555; create table t1 (a decimal(20)); insert into t1 values (12345678901234567890); select count(a) from t1; count(a) 1 select count(distinct a) from t1; count(distinct a) 1 drop table t1; CREATE TABLE t1 (a INT, b INT); INSERT INTO t1 VALUES (1,1),(1,2),(1,3),(1,4),(1,5),(1,6),(1,7),(1,8); INSERT INTO t1 SELECT a, b+8 FROM t1; INSERT INTO t1 SELECT a, b+16 FROM t1; INSERT INTO t1 SELECT a, b+32 FROM t1; INSERT INTO t1 SELECT a, b+64 FROM t1; INSERT INTO t1 SELECT a, b+128 FROM t1; INSERT INTO t1 SELECT a, b+256 FROM t1; INSERT INTO t1 SELECT a, b+512 FROM t1; INSERT INTO t1 SELECT a, b+1024 FROM t1; INSERT INTO t1 SELECT a, b+2048 FROM t1; INSERT INTO t1 SELECT a, b+4096 FROM t1; INSERT INTO t1 SELECT a, b+8192 FROM t1; INSERT INTO t1 SELECT a, b+16384 FROM t1; INSERT INTO t1 SELECT a, b+32768 FROM t1; SELECT a,COUNT(DISTINCT b) AS cnt FROM t1 GROUP BY a HAVING cnt > 50; a cnt 1 65536 SELECT a,SUM(DISTINCT b) AS sumation FROM t1 GROUP BY a HAVING sumation > 50; a sumation 1 2147516416 SELECT a,AVG(DISTINCT b) AS average FROM t1 GROUP BY a HAVING average > 50; a average 1 32768.5000 DROP TABLE t1; CREATE TABLE t1 ( a INT, b INT, KEY(a) ); INSERT INTO t1 VALUES (NULL, 1), (NULL, 2); EXPLAIN SELECT MIN(a), MIN(b) FROM t1; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 2 100.00 NULL Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`a`) AS `MIN(a)`,min(`test`.`t1`.`b`) AS `MIN(b)` from `test`.`t1` SELECT MIN(a), MIN(b) FROM t1; MIN(a) MIN(b) NULL 1 CREATE TABLE t2( a INT, b INT, c INT, KEY(a, b) ); INSERT INTO t2 ( a, b, c ) VALUES ( 1, NULL, 2 ), ( 1, 3, 4 ), ( 1, 4, 4 ); EXPLAIN SELECT MIN(b), MIN(c) FROM t2 WHERE a = 1; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 NULL ref a a 5 const 2 100.00 NULL Warnings: Note 1003 /* select#1 */ select min(`test`.`t2`.`b`) AS `MIN(b)`,min(`test`.`t2`.`c`) AS `MIN(c)` from `test`.`t2` where (`test`.`t2`.`a` = 1) SELECT MIN(b), MIN(c) FROM t2 WHERE a = 1; MIN(b) MIN(c) 3 2 CREATE TABLE t3 (a INT, b INT, c int, KEY(a, b)); INSERT INTO t3 VALUES (1, NULL, 1), (2, NULL, 2), (2, NULL, 2), (3, NULL, 3); EXPLAIN SELECT MIN(a), MIN(b) FROM t3 where a = 2; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select min(`test`.`t3`.`a`) AS `MIN(a)`,min(`test`.`t3`.`b`) AS `MIN(b)` from `test`.`t3` where multiple equal(2, `test`.`t3`.`a`) SELECT MIN(a), MIN(b) FROM t3 where a = 2; MIN(a) MIN(b) 2 NULL CREATE TABLE t4 (a INT, b INT, c int, KEY(a, b)); INSERT INTO t4 VALUES (1, 1, 1), (2, NULL, 2), (2, NULL, 2), (3, 1, 3); EXPLAIN SELECT MIN(a), MIN(b) FROM t4 where a = 2; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select min(`test`.`t4`.`a`) AS `MIN(a)`,min(`test`.`t4`.`b`) AS `MIN(b)` from `test`.`t4` where multiple equal(2, `test`.`t4`.`a`) SELECT MIN(a), MIN(b) FROM t4 where a = 2; MIN(a) MIN(b) 2 NULL SELECT MIN(b), min(c) FROM t4 where a = 2; MIN(b) min(c) NULL 2 CREATE TABLE t5( a INT, b INT, KEY( a, b) ); INSERT INTO t5 VALUES( 1, 1 ), ( 1, 2 ); EXPLAIN SELECT MIN(a), MIN(b) FROM t5 WHERE a = 1; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select min(`test`.`t5`.`a`) AS `MIN(a)`,min(`test`.`t5`.`b`) AS `MIN(b)` from `test`.`t5` where multiple equal(1, `test`.`t5`.`a`) SELECT MIN(a), MIN(b) FROM t5 WHERE a = 1; MIN(a) MIN(b) 1 1 SELECT MIN(a), MIN(b) FROM t5 WHERE a = 1 and b > 1; MIN(a) MIN(b) 1 2 DROP TABLE t1, t2, t3, t4, t5; CREATE TABLE t1 (a INT); INSERT INTO t1 values (),(),(); SELECT (SELECT SLEEP(0) FROM t1 ORDER BY AVG(DISTINCT a) ) as x FROM t1 GROUP BY x; ERROR HY000: Expression #1 of ORDER BY contains aggregate function and applies to the result of a non-aggregated query SELECT 1 FROM t1 GROUP BY (SELECT SLEEP(0) FROM t1 ORDER BY AVG(DISTINCT a) ); ERROR HY000: Expression #1 of ORDER BY contains aggregate function and applies to the result of a non-aggregated query DROP TABLE t1; CREATE TABLE t1 (a int, b date NOT NULL, KEY k1 (a,b)); SELECT MIN(b) FROM t1 WHERE a=1 AND b>'2007-08-01'; MIN(b) NULL DROP TABLE t1; CREATE TABLE t1 (a INT); INSERT INTO t1 VALUES (1),(2),(3),(4); SELECT a FROM t1 HAVING COUNT(*)>2; ERROR 42000: In aggregated query without GROUP BY, expression #1 of SELECT list contains nonaggregated column 'test.t1.a'; this is incompatible with sql_mode=only_full_group_by SELECT COUNT(*), a FROM t1; ERROR 42000: In aggregated query without GROUP BY, expression #2 of SELECT list contains nonaggregated column 'test.t1.a'; this is incompatible with sql_mode=only_full_group_by SELECT a FROM t1 HAVING COUNT(*)>2; a 1 SELECT COUNT(*), a FROM t1; COUNT(*) a 4 1 DROP TABLE t1; set SQL_MODE=ONLY_FULL_GROUP_BY; Warnings: Warning 3090 Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release. CREATE TABLE t1 (a INT); INSERT INTO t1 VALUES (1),(2),(3),(4); CREATE VIEW v1 AS SELECT a,(a + 1) AS y FROM t1; EXPLAIN EXTENDED SELECT y FROM v1 GROUP BY v1.y; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 4 100.00 Using temporary; Using filesort Warnings: Warning 1681 'EXTENDED' is deprecated and will be removed in a future release. Note 1003 /* select#1 */ select (`test`.`t1`.`a` + 1) AS `y` from `test`.`t1` group by (`test`.`t1`.`a` + 1) DROP VIEW v1; DROP TABLE t1; SET SQL_MODE=DEFAULT; CREATE TABLE t1(a DOUBLE); INSERT INTO t1 VALUES (10), (20); SELECT AVG(a), CAST(AVG(a) AS DECIMAL) FROM t1; AVG(a) CAST(AVG(a) AS DECIMAL) 15 15 DROP TABLE t1; CREATE TABLE derived1 (a bigint(21)); INSERT INTO derived1 VALUES (2); CREATE TABLE D ( pk int(11) NOT NULL AUTO_INCREMENT, int_nokey int(11) DEFAULT NULL, int_key int(11) DEFAULT NULL, filler blob, PRIMARY KEY (pk), KEY int_key (int_key) ); INSERT INTO D VALUES (39,40,4,repeat(' X', 42)), (43,56,4,repeat(' X', 42)), (47,12,4,repeat(' X', 42)), (71,28,4,repeat(' X', 42)), (76,54,4,repeat(' X', 42)), (83,45,4,repeat(' X', 42)), (105,53,12,NULL); SELECT (SELECT COUNT( int_nokey ) FROM derived1 AS X WHERE X.int_nokey < 61 GROUP BY pk LIMIT 1) FROM D AS X WHERE X.int_key < 13 GROUP BY int_nokey LIMIT 1; ERROR 42000: Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'test.X.pk' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by DROP TABLE derived1; DROP TABLE D; CREATE TABLE t1 (a INT, b INT); INSERT INTO t1 VALUES (1,1), (1,2), (1,3); SET SQL_MODE='ONLY_FULL_GROUP_BY'; Warnings: Warning 3090 Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release. SELECT COUNT(*) FROM t1; COUNT(*) 3 SELECT COUNT(*) FROM t1 where a=1; COUNT(*) 3 SELECT COUNT(*),a FROM t1; ERROR 42000: In aggregated query without GROUP BY, expression #2 of SELECT list contains nonaggregated column 'test.t1.a'; this is incompatible with sql_mode=only_full_group_by SELECT COUNT(*) FROM t1 a JOIN t1 b ON a.a= b.a; COUNT(*) 9 SELECT COUNT(*), (SELECT count(*) FROM t1 inr WHERE inr.a = outr.a) FROM t1 outr; ERROR 42000: In aggregated query without GROUP BY, expression #2 of SELECT list contains nonaggregated column 'test.outr.a'; this is incompatible with sql_mode=only_full_group_by SELECT COUNT(*) FROM t1 a JOIN t1 outr ON a.a= (SELECT count(*) FROM t1 inr WHERE inr.a = outr.a); COUNT(*) 0 SET SQL_MODE=default; DROP TABLE t1; End of 5.0 tests # # BUG#47280 - strange results from count(*) with order by multiple # columns without where/group # # # Initialize test # CREATE TABLE t1 ( pk INT NOT NULL, i INT, PRIMARY KEY (pk) ); INSERT INTO t1 VALUES (1,11),(2,12),(3,13); # # Start test # All the following queries shall return 1 record # # Masking all correct values {11...13} for column i in this result. SELECT MAX(pk) as max, i FROM t1 ORDER BY max; max i 3 # EXPLAIN SELECT MAX(pk) as max, i FROM t1 ORDER BY max; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 3 100.00 NULL Warnings: Note 1003 /* select#1 */ select max(`test`.`t1`.`pk`) AS `max`,`test`.`t1`.`i` AS `i` from `test`.`t1` # Only 11 is correct for collumn i in this result SELECT MAX(pk) as max, i FROM t1 WHERE pk<2 ORDER BY max; max i 1 11 # # Cleanup # DROP TABLE t1; # # Bug#43668: Wrong comparison and MIN/MAX for YEAR(2) # WL#6263: Remove year(2) # create table t1 (f1 year(4), f2 year(4), f3 date, f4 datetime); insert into t1 values (98,1998,19980101,"1998-01-01 00:00:00"), ('00',2000,20000101,"2000-01-01 00:00:01"), (02,2002,20020101,"2002-01-01 23:59:59"), (60,2060,20600101,"2060-01-01 11:11:11"), (70,1970,19700101,"1970-11-11 22:22:22"), (NULL,NULL,NULL,NULL); select min(f1),max(f1) from t1; min(f1) max(f1) 1970 2060 select min(f2),max(f2) from t1; min(f2) max(f2) 1970 2060 select min(f3),max(f3) from t1; min(f3) max(f3) 1970-01-01 2060-01-01 select min(f4),max(f4) from t1; min(f4) max(f4) 1970-11-11 22:22:22 2060-01-01 11:11:11 select a.f1 as a, b.f1 as b, a.f1 > b.f1 as gt, a.f1 < b.f1 as lt, a.f1<=>b.f1 as eq from t1 a, t1 b; a b gt lt eq 1998 1998 0 0 1 2000 1998 1 0 0 2002 1998 1 0 0 2060 1998 1 0 0 1970 1998 0 1 0 NULL 1998 NULL NULL 0 1998 2000 0 1 0 2000 2000 0 0 1 2002 2000 1 0 0 2060 2000 1 0 0 1970 2000 0 1 0 NULL 2000 NULL NULL 0 1998 2002 0 1 0 2000 2002 0 1 0 2002 2002 0 0 1 2060 2002 1 0 0 1970 2002 0 1 0 NULL 2002 NULL NULL 0 1998 2060 0 1 0 2000 2060 0 1 0 2002 2060 0 1 0 2060 2060 0 0 1 1970 2060 0 1 0 NULL 2060 NULL NULL 0 1998 1970 1 0 0 2000 1970 1 0 0 2002 1970 1 0 0 2060 1970 1 0 0 1970 1970 0 0 1 NULL 1970 NULL NULL 0 1998 NULL NULL NULL 0 2000 NULL NULL NULL 0 2002 NULL NULL NULL 0 2060 NULL NULL NULL 0 1970 NULL NULL NULL 0 NULL NULL NULL NULL 1 select a.f1 as a, b.f2 as b, a.f1 > b.f2 as gt, a.f1 < b.f2 as lt, a.f1<=>b.f2 as eq from t1 a, t1 b; a b gt lt eq 1998 1998 0 0 1 2000 1998 1 0 0 2002 1998 1 0 0 2060 1998 1 0 0 1970 1998 0 1 0 NULL 1998 NULL NULL 0 1998 2000 0 1 0 2000 2000 0 0 1 2002 2000 1 0 0 2060 2000 1 0 0 1970 2000 0 1 0 NULL 2000 NULL NULL 0 1998 2002 0 1 0 2000 2002 0 1 0 2002 2002 0 0 1 2060 2002 1 0 0 1970 2002 0 1 0 NULL 2002 NULL NULL 0 1998 2060 0 1 0 2000 2060 0 1 0 2002 2060 0 1 0 2060 2060 0 0 1 1970 2060 0 1 0 NULL 2060 NULL NULL 0 1998 1970 1 0 0 2000 1970 1 0 0 2002 1970 1 0 0 2060 1970 1 0 0 1970 1970 0 0 1 NULL 1970 NULL NULL 0 1998 NULL NULL NULL 0 2000 NULL NULL NULL 0 2002 NULL NULL NULL 0 2060 NULL NULL NULL 0 1970 NULL NULL NULL 0 NULL NULL NULL NULL 1 select a.f1 as a, b.f3 as b, a.f1 > b.f3 as gt, a.f1 < b.f3 as lt, a.f1<=>b.f3 as eq from t1 a, t1 b; a b gt lt eq 1998 1998-01-01 0 1 0 2000 1998-01-01 1 0 0 2002 1998-01-01 1 0 0 2060 1998-01-01 1 0 0 1970 1998-01-01 0 1 0 NULL 1998-01-01 NULL NULL 0 1998 2000-01-01 0 1 0 2000 2000-01-01 0 1 0 2002 2000-01-01 1 0 0 2060 2000-01-01 1 0 0 1970 2000-01-01 0 1 0 NULL 2000-01-01 NULL NULL 0 1998 2002-01-01 0 1 0 2000 2002-01-01 0 1 0 2002 2002-01-01 0 1 0 2060 2002-01-01 1 0 0 1970 2002-01-01 0 1 0 NULL 2002-01-01 NULL NULL 0 1998 2060-01-01 0 1 0 2000 2060-01-01 0 1 0 2002 2060-01-01 0 1 0 2060 2060-01-01 0 1 0 1970 2060-01-01 0 1 0 NULL 2060-01-01 NULL NULL 0 1998 1970-01-01 1 0 0 2000 1970-01-01 1 0 0 2002 1970-01-01 1 0 0 2060 1970-01-01 1 0 0 1970 1970-01-01 0 1 0 NULL 1970-01-01 NULL NULL 0 1998 NULL NULL NULL 0 2000 NULL NULL NULL 0 2002 NULL NULL NULL 0 2060 NULL NULL NULL 0 1970 NULL NULL NULL 0 NULL NULL NULL NULL 1 select a.f1 as a, b.f4 as b, a.f1 > b.f4 as gt, a.f1 < b.f4 as lt, a.f1<=>b.f4 as eq from t1 a, t1 b; a b gt lt eq 1998 1998-01-01 00:00:00 0 1 0 2000 1998-01-01 00:00:00 1 0 0 2002 1998-01-01 00:00:00 1 0 0 2060 1998-01-01 00:00:00 1 0 0 1970 1998-01-01 00:00:00 0 1 0 NULL 1998-01-01 00:00:00 NULL NULL 0 1998 2000-01-01 00:00:01 0 1 0 2000 2000-01-01 00:00:01 0 1 0 2002 2000-01-01 00:00:01 1 0 0 2060 2000-01-01 00:00:01 1 0 0 1970 2000-01-01 00:00:01 0 1 0 NULL 2000-01-01 00:00:01 NULL NULL 0 1998 2002-01-01 23:59:59 0 1 0 2000 2002-01-01 23:59:59 0 1 0 2002 2002-01-01 23:59:59 0 1 0 2060 2002-01-01 23:59:59 1 0 0 1970 2002-01-01 23:59:59 0 1 0 NULL 2002-01-01 23:59:59 NULL NULL 0 1998 2060-01-01 11:11:11 0 1 0 2000 2060-01-01 11:11:11 0 1 0 2002 2060-01-01 11:11:11 0 1 0 2060 2060-01-01 11:11:11 0 1 0 1970 2060-01-01 11:11:11 0 1 0 NULL 2060-01-01 11:11:11 NULL NULL 0 1998 1970-11-11 22:22:22 1 0 0 2000 1970-11-11 22:22:22 1 0 0 2002 1970-11-11 22:22:22 1 0 0 2060 1970-11-11 22:22:22 1 0 0 1970 1970-11-11 22:22:22 0 1 0 NULL 1970-11-11 22:22:22 NULL NULL 0 1998 NULL NULL NULL 0 2000 NULL NULL NULL 0 2002 NULL NULL NULL 0 2060 NULL NULL NULL 0 1970 NULL NULL NULL 0 NULL NULL NULL NULL 1 select *, f1 = f2 from t1; f1 f2 f3 f4 f1 = f2 1998 1998 1998-01-01 1998-01-01 00:00:00 1 2000 2000 2000-01-01 2000-01-01 00:00:01 1 2002 2002 2002-01-01 2002-01-01 23:59:59 1 2060 2060 2060-01-01 2060-01-01 11:11:11 1 1970 1970 1970-01-01 1970-11-11 22:22:22 1 NULL NULL NULL NULL NULL drop table t1; # # Bug #54465: assert: field_types == 0 || field_types[field_pos] == # MYSQL_TYPE_LONGLONG # CREATE TABLE t1 (a INT); INSERT INTO t1 VALUES (1), (2); SELECT MAX((SELECT 1 FROM t1 ORDER BY @var LIMIT 1)) m FROM t1 t2, t1 ORDER BY t1.a; m 1 DROP TABLE t1; # # Bug#58030 crash in Item_func_geometry_from_text::val_str # SELECT MAX(TIMESTAMP(RAND(0))); SELECT MIN(TIMESTAMP(RAND(0))); # # Bug#58177 crash and valgrind warnings in decimal and protocol sending functions... # SELECT MIN(GET_LOCK('aaaaaaaaaaaaaaaaa',0) / '0b1111111111111111111111111111111111111111111111111111111111111111111111111' ^ (RAND())); SELECT MIN(GET_LOCK('aaaaaaaaaaaaaaaaa',0) / '0b1111111111111111111111111111111111111111111111111111111111111111111111111' ^ (RAND())); SELECT MIN(GET_LOCK('aaaaaaaaaaaaaaaaa',0) / '0b1111111111111111111111111111111111111111111111111111111111111111111111111' ^ (RAND())); SELECT MIN(GET_LOCK('aaaaaaaaaaaaaaaaa',0) / '0b1111111111111111111111111111111111111111111111111111111111111111111111111' ^ (RAND())); SELECT RELEASE_LOCK('aaaaaaaaaaaaaaaaa'); # # Bug #11766094 - 59132: MIN() AND MAX() REMOVE UNSIGNEDNESS # CREATE TABLE t1 (a BIGINT UNSIGNED); INSERT INTO t1 VALUES (18446668621106209655); SELECT MAX(LENGTH(a)), LENGTH(MAX(a)), MIN(a), MAX(a), CONCAT(MIN(a)), CONCAT(MAX(a)) FROM t1; MAX(LENGTH(a)) LENGTH(MAX(a)) MIN(a) MAX(a) CONCAT(MIN(a)) CONCAT(MAX(a)) 20 20 18446668621106209655 18446668621106209655 18446668621106209655 18446668621106209655 DROP TABLE t1; # # Bug #11766270 59343: YEAR(4): INCORRECT RESULT AND VALGRIND WARNINGS WITH MIN/MAX, UNION # CREATE TABLE t1(f1 YEAR(4)); INSERT INTO t1 VALUES (0000),(2001); (SELECT MAX(f1) FROM t1) UNION (SELECT MAX(f1) FROM t1); Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr def MAX(f1) MAX(f1) 13 4 4 Y 32864 0 63 MAX(f1) 2001 DROP TABLE t1; # End of 5.1 tests # # Bug#52123 Assertion failed: aggregator == aggr->Aggrtype(), # file .\item_sum.cc, line 587 # CREATE TABLE t1(a int, KEY(a)); INSERT INTO t1 VALUES (1), (2); SELECT 1 FROM t1 ORDER BY AVG(DISTINCT a); ERROR HY000: Expression #1 of ORDER BY contains aggregate function and applies to the result of a non-aggregated query DROP TABLE t1; # # Bug#55648: Server crash on MIN/MAX on maximum time value # CREATE TABLE t1(c1 TIME NOT NULL); INSERT INTO t1 VALUES('837:59:59'); INSERT INTO t1 VALUES('838:59:59'); SELECT MAX(c1) FROM t1; MAX(c1) 838:59:59 DROP TABLE t1; # End of the bug#55648 # # Bug#56120: Failed assertion on MIN/MAX on negative time value # CREATE TABLE t1(c1 TIME NOT NULL); INSERT INTO t1 VALUES('-00:00:01'); SELECT MAX(c1),MIN(c1) FROM t1; MAX(c1) MIN(c1) -00:00:01 -00:00:01 DROP TABLE t1; # End of the bug#56120 # # Bug#57932 "query with AVG(DISTINCT) returns NULL if last # aggregated value was NULL" # CREATE TABLE t1 (col_int_nokey int(11)); INSERT INTO t1 VALUES (7),(8),(NULL); SELECT AVG(DISTINCT col_int_nokey) FROM t1; AVG(DISTINCT col_int_nokey) 7.5000 SELECT AVG(DISTINCT outr.col_int_nokey) FROM t1 AS outr LEFT JOIN t1 AS outr2 ON outr.col_int_nokey = outr2.col_int_nokey; AVG(DISTINCT outr.col_int_nokey) 7.5000 DROP TABLE t1; # End of the bug#57932 # # BUG#12773464 - 61925: WRONG RESULT WITH AGGREGATE + NOT BETWEEN + KEY # CREATE TABLE t1 (a int, KEY (a)); INSERT INTO t1 VALUES (1),(2),(3),(4),(5),(6),(7),(8),(9),(10); SELECT MAX(a) FROM t1 WHERE a NOT BETWEEN 3 AND 9; MAX(a) 10 DROP TABLE t1; # # Bug#13724099 1032 BYTE MEMORY LEAK NEW_CACHED_ITEM IN # SUBQUERY WITH GROUPING OF OUTER COLUMN # CREATE TABLE t1 ( a BLOB, b INT) engine=innodb; INSERT INTO t1 VALUES ('a', 0); SELECT 0 FROM t1 WHERE 0 = (SELECT group_concat(b) FROM t1 t GROUP BY t1.a) ; 0 0 DROP TABLE t1; # # Bug#32552332 - CAN'T WRITE; DUPLICATE KEY IN TABLE '/TMP/#SQL...' # CREATE TABLE tr (c1 INT); INSERT INTO tr VALUES (1); CREATE FUNCTION seq_1_to_2() RETURNS INT BEGIN DECLARE limit_value, return_value INT; SET limit_value = 2; SELECT c1 INTO return_value FROM tr; IF (return_value < limit_value) THEN UPDATE tr SET c1 = c1 + 1; ELSE UPDATE tr SET c1 = 1; END IF; RETURN (return_value); END| CREATE TABLE t1 (c1 INT); INSERT INTO t1 VALUES (10); INSERT INTO t1 VALUES (11); SELECT seq_1_to_2() as seq, COUNT(*) FROM t1 GROUP BY seq; seq COUNT(*) 1 1 2 1 SELECT FLOOR(seq_1_to_2() * 2) AS val, COUNT(*) FROM t1 GROUP BY val; val COUNT(*) 2 1 4 1 SELECT val, COUNT(*) FROM (SELECT FLOOR(seq_1_to_2())+1 val FROM t1) x GROUP BY x.val; val COUNT(*) 2 1 3 1 DROP TABLE t1, tr; DROP FUNCTION seq_1_to_2;
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