Edit File: innodb_bug30423.result
set global innodb_stats_method = default; select @@innodb_stats_method; @@innodb_stats_method nulls_equal select count(*) from bug30243_3 where org_id is not NULL; count(*) 20 select count(*) from bug30243_3 where org_id is NULL; count(*) 16384 select count(*) from bug30243_2 where org_id is not NULL; count(*) 224 select count(*) from bug30243_2 where org_id is NULL; count(*) 65536 select @@innodb_stats_method; @@innodb_stats_method nulls_equal analyze table bug30243_1; Table Op Msg_type Msg_text test.bug30243_1 analyze status OK analyze table bug30243_2; Table Op Msg_type Msg_text test.bug30243_2 analyze status OK analyze table bug30243_3; Table Op Msg_type Msg_text test.bug30243_3 analyze status OK set global innodb_stats_method = "NULL"; ERROR 42000: Variable 'innodb_stats_method' can't be set to the value of 'NULL' set global innodb_stats_method = "nulls_ignored"; select @@innodb_stats_method; @@innodb_stats_method nulls_ignored analyze table bug30243_1; Table Op Msg_type Msg_text test.bug30243_1 analyze status OK analyze table bug30243_2; Table Op Msg_type Msg_text test.bug30243_2 analyze status OK analyze table bug30243_3; Table Op Msg_type Msg_text test.bug30243_3 analyze status OK explain SELECT COUNT(*), 0 FROM bug30243_1 orgs LEFT JOIN bug30243_3 sa_opportunities ON orgs.org_id=sa_opportunities.org_id LEFT JOIN bug30243_2 contacts ON orgs.org_id=contacts.org_id ; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE orgs index NULL org_id 4 NULL 128 Using index 1 SIMPLE sa_opportunities ref org_id org_id 5 test.orgs.org_id 1 Using index 1 SIMPLE contacts ref contacts$org_id contacts$org_id 5 test.orgs.org_id 1 Using index select @@innodb_stats_method; @@innodb_stats_method nulls_ignored set global innodb_stats_method = "nulls_unequal"; select @@innodb_stats_method; @@innodb_stats_method nulls_unequal analyze table bug30243_1; Table Op Msg_type Msg_text test.bug30243_1 analyze status OK analyze table bug30243_2; Table Op Msg_type Msg_text test.bug30243_2 analyze status OK analyze table bug30243_3; Table Op Msg_type Msg_text test.bug30243_3 analyze status OK explain SELECT COUNT(*), 0 FROM bug30243_1 orgs LEFT JOIN bug30243_3 sa_opportunities ON orgs.org_id=sa_opportunities.org_id LEFT JOIN bug30243_2 contacts ON orgs.org_id=contacts.org_id; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE orgs index NULL org_id 4 NULL 128 Using index 1 SIMPLE sa_opportunities ref org_id org_id 5 test.orgs.org_id 1 Using index 1 SIMPLE contacts ref contacts$org_id contacts$org_id 5 test.orgs.org_id 1 Using index SELECT COUNT(*) FROM table_bug30423 WHERE org_id IS NULL; COUNT(*) 1024 set global innodb_stats_method = "nulls_unequal"; analyze table table_bug30423; Table Op Msg_type Msg_text test.table_bug30423 analyze status OK set global innodb_stats_method = "nulls_ignored"; analyze table table_bug30423; Table Op Msg_type Msg_text test.table_bug30423 analyze status OK set global innodb_stats_method = nulls_equal; drop table bug30243_2; drop table bug30243_1; drop table bug30243_3; drop table table_bug30423;
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