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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.
62 lines
2.0 KiB
Plaintext
62 lines
2.0 KiB
Plaintext
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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