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ec4ff9a2e7
Temporary table count fix. The number of temporary tables was increased when the table is not actually created. (when do_not_open was passed as TRUE to create_tmp_table).
54 lines
1.8 KiB
Plaintext
54 lines
1.8 KiB
Plaintext
# MDEV-7586 regression test.
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# Test if created_tmp_tables status variable is correctly incremented.
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--source include/have_perfschema.inc
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create table t2 (a int);
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insert into t2 values (1),(2),(3);
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create view v2 as select a from t2;
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flush status;
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select * from v2;
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show status like '%Created_tmp%';
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explain select * from v2;
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select * from (select * from t2) T1;
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show status like '%Created_tmp%';
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explain select * from (select * from t2) T1;
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drop view v2;
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drop table t2;
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CREATE TABLE t1(a int);
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INSERT INTO t1 values(1),(2);
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CREATE TABLE t2(a int);
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INSERT INTO t2 values(1),(2);
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EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT * FROM t2 GROUP BY a HAVING a > 1);
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truncate table performance_schema.events_statements_history_long;
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flush status;
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CREATE TABLE t3 SELECT * FROM t1 WHERE a IN (SELECT * FROM t2 GROUP BY a HAVING a > 1);
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--echo # Performance schema should be the same as "Created_tmp_tables" variable below
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select sum(created_tmp_tables) from performance_schema.events_statements_history_long;
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show status like '%Created_tmp%';
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drop table t3;
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EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT * FROM t2 GROUP BY a);
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truncate table performance_schema.events_statements_history_long;
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flush status;
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CREATE TABLE t3 SELECT * FROM t1 WHERE a IN (SELECT * FROM t2 GROUP BY a);
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--echo # Performance schema should be the same as "Created_tmp_tables" variable below
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select sum(created_tmp_tables) from performance_schema.events_statements_history_long;
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show status like '%Created_tmp%';
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drop table t1,t2,t3;
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truncate table performance_schema.events_statements_history_long;
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flush status;
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--echo # Performance schema should be the same as "Created_tmp_tables" variable below
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select sum(created_tmp_tables) from performance_schema.events_statements_history_long;
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show status like '%Created_tmp%';
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