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98a78c460f
Problem was that test tried to calculate number of pages on buffer pool and operations done to them. This is not realible way on buildbot.
61 lines
2 KiB
Text
61 lines
2 KiB
Text
DROP TABLE if exists t1;
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select @@global.innodb_stats_persistent;
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@@global.innodb_stats_persistent
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0
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set global innodb_defragment_stats_accuracy = 80;
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CREATE TABLE t1 (a INT NOT NULL PRIMARY KEY AUTO_INCREMENT, b VARCHAR(256), c INT, KEY second(a, b),KEY third(c)) ENGINE=INNODB;
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SET @@global.innodb_defragment_n_pages = 20;
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select count(*) from t1;
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count(*)
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20000
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select count(*) from t1 force index (second);
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count(*)
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20000
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select count(*) from t1 force index (third);
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count(*)
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20000
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select count(*) from t1;
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count(*)
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15800
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select count(*) from t1 force index (second);
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count(*)
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15800
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select count(*) from t1 force index (third);
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count(*)
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15800
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select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and stat_name in ('n_pages_freed');
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count(stat_value) > 0
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0
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select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and stat_name in ('n_page_split');
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count(stat_value) > 0
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1
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select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and stat_name in ('n_leaf_pages_defrag');
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count(stat_value) > 0
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1
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optimize table t1;;
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INSERT INTO t1 VALUES (400000, REPEAT('A', 256),300000);;
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INSERT INTO t1 VALUES (500000, REPEAT('A', 256),400000);;
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DELETE FROM t1 where a between 1 and 100;;
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UPDATE t1 SET c = c + 1 where c between 2000 and 8000;;
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optimize table t1;
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Table Op Msg_type Msg_text
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test.t1 optimize status OK
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select count(*) from t1;
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count(*)
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15723
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select count(*) from t1 force index (second);
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count(*)
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15723
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select count(*) from t1 force index (third);
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count(*)
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15723
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select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and stat_name in ('n_pages_freed');
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count(stat_value) > 0
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1
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select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and stat_name in ('n_page_split');
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count(stat_value) > 0
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1
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select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and stat_name in ('n_leaf_pages_defrag');
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count(stat_value) > 0
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1
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drop table t1;
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