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ecc7961140
Trivial batch, using the handler statistics already collected for the slow query log. The reason for the changes in test cases was mainly to change to use select TABLE_SCHEMA ... from information_schema.table_statistics instead of 'show table_statistics' to avoid future changes to test results if we add more columns to table_statistics.
64 lines
1.8 KiB
SQL
64 lines
1.8 KiB
SQL
# include file to test index and table statstics for specific storage engine
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# requires includer set the default storage engine for the session
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# Bug 602047 (wrong rows_read value)
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FLUSH INDEX_STATISTICS;
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FLUSH TABLE_STATISTICS;
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SET @userstat_old= @@userstat;
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SET GLOBAL userstat=ON;
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--disable_ps2_protocol
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CREATE TABLE t1 (id int(10), PRIMARY KEY (id));
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INSERT INTO t1 VALUES (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
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FLUSH TABLE_STATISTICS;
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SELECT SUM(id) FROM t1;
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SELECT ROWS_READ FROM INFORMATION_SCHEMA.TABLE_STATISTICS WHERE TABLE_NAME='t1';
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SELECT ROWS_READ FROM INFORMATION_SCHEMA.INDEX_STATISTICS WHERE TABLE_NAME='t1';
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SELECT PAGES_ACCESSED, PAGES_READ_FROM_DISK FROM INFORMATION_SCHEMA.TABLE_STATISTICS WHERE TABLE_NAME='t1';
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# Test that FLUSH clears one table but not another
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FLUSH TABLE_STATISTICS;
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SELECT ROWS_READ FROM INFORMATION_SCHEMA.TABLE_STATISTICS WHERE TABLE_NAME='t1';
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SELECT ROWS_READ FROM INFORMATION_SCHEMA.INDEX_STATISTICS WHERE TABLE_NAME='t1';
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# Test that FLUSH clears both tables now
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FLUSH INDEX_STATISTICS;
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SELECT ROWS_READ FROM INFORMATION_SCHEMA.INDEX_STATISTICS WHERE TABLE_NAME='t1';
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# Test that stats are collected after the FLUSH again
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SELECT COUNT(*) FROM t1;
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SELECT ROWS_READ FROM INFORMATION_SCHEMA.TABLE_STATISTICS WHERE TABLE_NAME='t1';
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SELECT ROWS_READ FROM INFORMATION_SCHEMA.INDEX_STATISTICS WHERE TABLE_NAME='t1';
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--enable_ps2_protocol
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DROP TABLE t1;
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# Bug 1183625 (handler::update_global_table_stats crash).
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CREATE TABLE t2 (c1 INT UNSIGNED);
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ALTER TABLE t2 MODIFY c1 FLOAT;
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SELECT * FROM INFORMATION_SCHEMA.TABLE_STATISTICS WHERE TABLE_NAME='t2';
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DROP TABLE t2;
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# Bug 1183625 (handler::update_global_table_stats crash).
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CREATE TABLE t2 (c1 INT UNSIGNED);
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ALTER TABLE t2 MODIFY c1 FLOAT;
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SELECT * FROM INFORMATION_SCHEMA.TABLE_STATISTICS WHERE TABLE_NAME='t2';
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DROP TABLE t2;
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SET GLOBAL userstat= @userstat_old;
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