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@@ -1,3 +1,5 @@
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SET @saved_frequency = @@GLOBAL.innodb_purge_rseg_truncate_frequency;
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SET GLOBAL innodb_purge_rseg_truncate_frequency = 1;
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CREATE TABLE tab(a BIGINT PRIMARY KEY,c1 TINYTEXT,c2 TEXT,c3 MEDIUMTEXT,
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c4 TINYBLOB,c5 BLOB,c6 MEDIUMBLOB,c7 LONGBLOB) ENGINE=InnoDB;
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CREATE INDEX index1 ON tab(c1(255)) COMMENT 'Check index level merge MERGE_THRESHOLD=51';
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@@ -205,14 +207,15 @@ PAGE_NUMBER NUMBER_RECORDS
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3 2
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4 7
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5 7
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set global innodb_purge_stop_now=ON;
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begin;
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delete from tab1 where a = 12;
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delete from tab1 where a = 13;
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delete from tab1 where a = 14;
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delete from tab1 where a = 5;
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delete from tab1 where a = 6;
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delete from tab1 where a = 7;
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set global innodb_purge_run_now=ON;
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commit;
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InnoDB 0 transactions not purged
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# check page merge happens (nothing is expected)
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SELECT name,count_reset FROM information_schema.innodb_metrics
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WHERE name like 'index_page_merge_%';
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@@ -228,27 +231,24 @@ PAGE_NUMBER NUMBER_RECORDS
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3 2
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4 4
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5 4
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set global innodb_purge_stop_now=ON;
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delete from tab1 where a = 11;
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set global innodb_purge_run_now=ON;
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InnoDB 0 transactions not purged
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# check page merge happens (MERGE_THRESHOLD=50 causes merge here)
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SELECT name,count_reset FROM information_schema.innodb_metrics
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WHERE name like 'index_page_merge_%';
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name count_reset
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index_page_merge_attempts 1
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index_page_merge_successful 1
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set global innodb_purge_stop_now=ON;
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delete from tab1 where a = 10;
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set global innodb_purge_run_now=ON;
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InnoDB 0 transactions not purged
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# check page merge happens (MERGE_THRESHOLD=35 causes merge here)
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SELECT name,count_reset FROM information_schema.innodb_metrics
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WHERE name like 'index_page_merge_%';
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name count_reset
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index_page_merge_attempts 2
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index_page_merge_successful 2
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set global innodb_purge_stop_now=ON;
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delete from tab1 where a = 9;
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set global innodb_purge_run_now=ON;
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InnoDB 0 transactions not purged
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# check page merge happens (MERGE_THRESHOLD=25 causes merge here)
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SELECT name,count_reset FROM information_schema.innodb_metrics
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WHERE name like 'index_page_merge_%';
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@@ -288,14 +288,15 @@ PAGE_NUMBER NUMBER_RECORDS
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3 2
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4 7
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5 7
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set global innodb_purge_stop_now=ON;
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begin;
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delete from tab1 where a = 12;
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delete from tab1 where a = 13;
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delete from tab1 where a = 14;
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delete from tab1 where a = 5;
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delete from tab1 where a = 6;
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delete from tab1 where a = 7;
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set global innodb_purge_run_now=ON;
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commit;
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InnoDB 0 transactions not purged
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# check page merge happens (nothing is expected)
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SELECT name,count_reset FROM information_schema.innodb_metrics
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WHERE name like 'index_page_merge_%';
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@@ -311,27 +312,24 @@ PAGE_NUMBER NUMBER_RECORDS
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3 2
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4 4
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5 4
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set global innodb_purge_stop_now=ON;
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delete from tab1 where a = 11;
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set global innodb_purge_run_now=ON;
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InnoDB 0 transactions not purged
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# check page merge happens (MERGE_THRESHOLD=50 causes merge here)
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SELECT name,count_reset FROM information_schema.innodb_metrics
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WHERE name like 'index_page_merge_%';
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name count_reset
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index_page_merge_attempts 0
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index_page_merge_successful 0
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set global innodb_purge_stop_now=ON;
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delete from tab1 where a = 10;
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set global innodb_purge_run_now=ON;
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InnoDB 0 transactions not purged
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# check page merge happens (MERGE_THRESHOLD=35 causes merge here)
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SELECT name,count_reset FROM information_schema.innodb_metrics
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WHERE name like 'index_page_merge_%';
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name count_reset
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index_page_merge_attempts 1
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index_page_merge_successful 1
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set global innodb_purge_stop_now=ON;
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delete from tab1 where a = 9;
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set global innodb_purge_run_now=ON;
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InnoDB 0 transactions not purged
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# check page merge happens (MERGE_THRESHOLD=25 causes merge here)
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SELECT name,count_reset FROM information_schema.innodb_metrics
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WHERE name like 'index_page_merge_%';
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@@ -371,14 +369,15 @@ PAGE_NUMBER NUMBER_RECORDS
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3 2
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4 7
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5 7
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set global innodb_purge_stop_now=ON;
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begin;
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delete from tab1 where a = 12;
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delete from tab1 where a = 13;
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delete from tab1 where a = 14;
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delete from tab1 where a = 5;
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delete from tab1 where a = 6;
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delete from tab1 where a = 7;
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set global innodb_purge_run_now=ON;
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commit;
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InnoDB 0 transactions not purged
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# check page merge happens (nothing is expected)
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SELECT name,count_reset FROM information_schema.innodb_metrics
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WHERE name like 'index_page_merge_%';
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@@ -394,27 +393,24 @@ PAGE_NUMBER NUMBER_RECORDS
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3 2
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4 4
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5 4
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set global innodb_purge_stop_now=ON;
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delete from tab1 where a = 11;
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set global innodb_purge_run_now=ON;
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InnoDB 0 transactions not purged
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# check page merge happens (MERGE_THRESHOLD=50 causes merge here)
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SELECT name,count_reset FROM information_schema.innodb_metrics
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WHERE name like 'index_page_merge_%';
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name count_reset
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index_page_merge_attempts 0
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index_page_merge_successful 0
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set global innodb_purge_stop_now=ON;
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delete from tab1 where a = 10;
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set global innodb_purge_run_now=ON;
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InnoDB 0 transactions not purged
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# check page merge happens (MERGE_THRESHOLD=35 causes merge here)
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SELECT name,count_reset FROM information_schema.innodb_metrics
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WHERE name like 'index_page_merge_%';
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name count_reset
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index_page_merge_attempts 0
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index_page_merge_successful 0
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set global innodb_purge_stop_now=ON;
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delete from tab1 where a = 9;
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set global innodb_purge_run_now=ON;
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InnoDB 0 transactions not purged
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# check page merge happens (MERGE_THRESHOLD=25 causes merge here)
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SELECT name,count_reset FROM information_schema.innodb_metrics
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WHERE name like 'index_page_merge_%';
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@@ -459,14 +455,15 @@ PAGE_NUMBER NUMBER_RECORDS
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3 2
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4 7
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5 7
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set global innodb_purge_stop_now=ON;
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begin;
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|
delete from tab1 where a = 12;
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delete from tab1 where a = 13;
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delete from tab1 where a = 14;
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delete from tab1 where a = 5;
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delete from tab1 where a = 6;
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delete from tab1 where a = 7;
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set global innodb_purge_run_now=ON;
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commit;
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InnoDB 0 transactions not purged
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# check page merge happens (nothing is expected)
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SELECT name,count_reset FROM information_schema.innodb_metrics
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WHERE name like 'index_page_merge_%';
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@@ -483,27 +480,24 @@ PAGE_NUMBER NUMBER_RECORDS
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3 2
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4 4
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5 4
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set global innodb_purge_stop_now=ON;
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delete from tab1 where a = 11;
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set global innodb_purge_run_now=ON;
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|
InnoDB 0 transactions not purged
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# check page merge happens (MERGE_THRESHOLD=50 causes merge here)
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SELECT name,count_reset FROM information_schema.innodb_metrics
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WHERE name like 'index_page_merge_%';
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name count_reset
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index_page_merge_attempts 0
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index_page_merge_successful 0
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set global innodb_purge_stop_now=ON;
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delete from tab1 where a = 10;
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set global innodb_purge_run_now=ON;
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InnoDB 0 transactions not purged
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# check page merge happens (MERGE_THRESHOLD=35 causes merge here)
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SELECT name,count_reset FROM information_schema.innodb_metrics
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WHERE name like 'index_page_merge_%';
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name count_reset
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index_page_merge_attempts 1
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index_page_merge_successful 1
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set global innodb_purge_stop_now=ON;
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delete from tab1 where a = 9;
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set global innodb_purge_run_now=ON;
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|
InnoDB 0 transactions not purged
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# check page merge happens (MERGE_THRESHOLD=25 causes merge here)
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SELECT name,count_reset FROM information_schema.innodb_metrics
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WHERE name like 'index_page_merge_%';
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@@ -872,7 +866,7 @@ PAGE_NUMBER NUMBER_RECORDS
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4 2
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27 21
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28 21
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set global innodb_purge_stop_now=ON;
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begin;
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delete from tab1 where a = 33;
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delete from tab1 where a = 34;
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delete from tab1 where a = 35;
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@@ -893,7 +887,8 @@ delete from tab1 where a = 18;
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delete from tab1 where a = 19;
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delete from tab1 where a = 20;
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delete from tab1 where a = 21;
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set global innodb_purge_run_now=ON;
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commit;
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InnoDB 0 transactions not purged
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|
# check page merge happens (nothing is expected)
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SELECT name,count_reset FROM information_schema.innodb_metrics
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WHERE name like 'index_page_merge_%';
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@@ -910,27 +905,24 @@ PAGE_NUMBER NUMBER_RECORDS
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4 2
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27 11
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28 11
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set global innodb_purge_stop_now=ON;
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delete from tab1 where a = 32;
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set global innodb_purge_run_now=ON;
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InnoDB 0 transactions not purged
|
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|
# check page merge happens (MERGE_THRESHOLD=50 causes merge here)
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SELECT name,count_reset FROM information_schema.innodb_metrics
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WHERE name like 'index_page_merge_%';
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name count_reset
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index_page_merge_attempts 1
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index_page_merge_successful 1
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set global innodb_purge_stop_now=ON;
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delete from tab1 where a = 31;
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set global innodb_purge_run_now=ON;
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|
InnoDB 0 transactions not purged
|
|
|
|
|
# check page merge happens (MERGE_THRESHOLD=45 causes merge here)
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|
|
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|
SELECT name,count_reset FROM information_schema.innodb_metrics
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WHERE name like 'index_page_merge_%';
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name count_reset
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index_page_merge_attempts 2
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index_page_merge_successful 2
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set global innodb_purge_stop_now=ON;
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delete from tab1 where a = 30;
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set global innodb_purge_run_now=ON;
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|
InnoDB 0 transactions not purged
|
|
|
|
|
# check page merge happens (MERGE_THRESHOLD=40 causes merge here)
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SELECT name,count_reset FROM information_schema.innodb_metrics
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WHERE name like 'index_page_merge_%';
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@@ -1000,7 +992,7 @@ PAGE_NUMBER NUMBER_RECORDS
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4 2
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27 21
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28 21
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set global innodb_purge_stop_now=ON;
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|
|
|
|
begin;
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|
|
|
|
delete from tab1 where a = 33;
|
|
|
|
|
delete from tab1 where a = 34;
|
|
|
|
|
delete from tab1 where a = 35;
|
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|
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|
@@ -1021,7 +1013,8 @@ delete from tab1 where a = 18;
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delete from tab1 where a = 19;
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|
|
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|
delete from tab1 where a = 20;
|
|
|
|
|
delete from tab1 where a = 21;
|
|
|
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set global innodb_purge_run_now=ON;
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|
|
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|
commit;
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|
|
|
|
InnoDB 0 transactions not purged
|
|
|
|
|
# check page merge happens (nothing is expected)
|
|
|
|
|
SELECT name,count_reset FROM information_schema.innodb_metrics
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WHERE name like 'index_page_merge_%';
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@@ -1038,27 +1031,24 @@ PAGE_NUMBER NUMBER_RECORDS
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4 2
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27 11
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28 11
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|
|
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set global innodb_purge_stop_now=ON;
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|
|
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|
delete from tab1 where a = 32;
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|
|
|
|
set global innodb_purge_run_now=ON;
|
|
|
|
|
InnoDB 0 transactions not purged
|
|
|
|
|
# check page merge happens (MERGE_THRESHOLD=50 causes merge here)
|
|
|
|
|
SELECT name,count_reset FROM information_schema.innodb_metrics
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|
|
|
|
WHERE name like 'index_page_merge_%';
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|
|
|
|
name count_reset
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|
|
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|
index_page_merge_attempts 0
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|
|
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|
index_page_merge_successful 0
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|
|
|
|
set global innodb_purge_stop_now=ON;
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|
|
|
|
delete from tab1 where a = 31;
|
|
|
|
|
set global innodb_purge_run_now=ON;
|
|
|
|
|
InnoDB 0 transactions not purged
|
|
|
|
|
# check page merge happens (MERGE_THRESHOLD=45 causes merge here)
|
|
|
|
|
SELECT name,count_reset FROM information_schema.innodb_metrics
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|
|
|
|
WHERE name like 'index_page_merge_%';
|
|
|
|
|
name count_reset
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|
|
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|
index_page_merge_attempts 1
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|
|
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|
index_page_merge_successful 1
|
|
|
|
|
set global innodb_purge_stop_now=ON;
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|
|
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|
delete from tab1 where a = 30;
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|
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set global innodb_purge_run_now=ON;
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InnoDB 0 transactions not purged
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# check page merge happens (MERGE_THRESHOLD=40 causes merge here)
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SELECT name,count_reset FROM information_schema.innodb_metrics
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WHERE name like 'index_page_merge_%';
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@@ -1128,7 +1118,7 @@ PAGE_NUMBER NUMBER_RECORDS
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4 2
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27 21
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28 21
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set global innodb_purge_stop_now=ON;
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begin;
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delete from tab1 where a = 33;
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delete from tab1 where a = 34;
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delete from tab1 where a = 35;
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@@ -1149,7 +1139,8 @@ delete from tab1 where a = 18;
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delete from tab1 where a = 19;
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delete from tab1 where a = 20;
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delete from tab1 where a = 21;
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set global innodb_purge_run_now=ON;
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|
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commit;
|
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|
|
InnoDB 0 transactions not purged
|
|
|
|
|
# check page merge happens (nothing is expected)
|
|
|
|
|
SELECT name,count_reset FROM information_schema.innodb_metrics
|
|
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|
|
WHERE name like 'index_page_merge_%';
|
|
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|
|
@@ -1166,27 +1157,24 @@ PAGE_NUMBER NUMBER_RECORDS
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4 2
|
|
|
|
|
27 11
|
|
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|
|
28 11
|
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|
|
set global innodb_purge_stop_now=ON;
|
|
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|
|
delete from tab1 where a = 32;
|
|
|
|
|
set global innodb_purge_run_now=ON;
|
|
|
|
|
InnoDB 0 transactions not purged
|
|
|
|
|
# check page merge happens (MERGE_THRESHOLD=50 causes merge here)
|
|
|
|
|
SELECT name,count_reset FROM information_schema.innodb_metrics
|
|
|
|
|
WHERE name like 'index_page_merge_%';
|
|
|
|
|
name count_reset
|
|
|
|
|
index_page_merge_attempts 0
|
|
|
|
|
index_page_merge_successful 0
|
|
|
|
|
set global innodb_purge_stop_now=ON;
|
|
|
|
|
delete from tab1 where a = 31;
|
|
|
|
|
set global innodb_purge_run_now=ON;
|
|
|
|
|
InnoDB 0 transactions not purged
|
|
|
|
|
# check page merge happens (MERGE_THRESHOLD=45 causes merge here)
|
|
|
|
|
SELECT name,count_reset FROM information_schema.innodb_metrics
|
|
|
|
|
WHERE name like 'index_page_merge_%';
|
|
|
|
|
name count_reset
|
|
|
|
|
index_page_merge_attempts 0
|
|
|
|
|
index_page_merge_successful 0
|
|
|
|
|
set global innodb_purge_stop_now=ON;
|
|
|
|
|
delete from tab1 where a = 30;
|
|
|
|
|
set global innodb_purge_run_now=ON;
|
|
|
|
|
InnoDB 0 transactions not purged
|
|
|
|
|
# check page merge happens (MERGE_THRESHOLD=40 causes merge here)
|
|
|
|
|
SELECT name,count_reset FROM information_schema.innodb_metrics
|
|
|
|
|
WHERE name like 'index_page_merge_%';
|
|
|
|
|
@@ -1257,7 +1245,7 @@ PAGE_NUMBER NUMBER_RECORDS
|
|
|
|
|
4 2
|
|
|
|
|
27 21
|
|
|
|
|
28 21
|
|
|
|
|
set global innodb_purge_stop_now=ON;
|
|
|
|
|
begin;
|
|
|
|
|
delete from tab1 where a = 33;
|
|
|
|
|
delete from tab1 where a = 34;
|
|
|
|
|
delete from tab1 where a = 35;
|
|
|
|
|
@@ -1278,7 +1266,8 @@ delete from tab1 where a = 18;
|
|
|
|
|
delete from tab1 where a = 19;
|
|
|
|
|
delete from tab1 where a = 20;
|
|
|
|
|
delete from tab1 where a = 21;
|
|
|
|
|
set global innodb_purge_run_now=ON;
|
|
|
|
|
commit;
|
|
|
|
|
InnoDB 0 transactions not purged
|
|
|
|
|
# check page merge happens (nothing is expected)
|
|
|
|
|
SELECT name,count_reset FROM information_schema.innodb_metrics
|
|
|
|
|
WHERE name like 'index_page_merge_%';
|
|
|
|
|
@@ -1295,27 +1284,24 @@ PAGE_NUMBER NUMBER_RECORDS
|
|
|
|
|
4 2
|
|
|
|
|
27 11
|
|
|
|
|
28 11
|
|
|
|
|
set global innodb_purge_stop_now=ON;
|
|
|
|
|
delete from tab1 where a = 32;
|
|
|
|
|
set global innodb_purge_run_now=ON;
|
|
|
|
|
InnoDB 0 transactions not purged
|
|
|
|
|
# check page merge happens (MERGE_THRESHOLD=50 causes merge here)
|
|
|
|
|
SELECT name,count_reset FROM information_schema.innodb_metrics
|
|
|
|
|
WHERE name like 'index_page_merge_%';
|
|
|
|
|
name count_reset
|
|
|
|
|
index_page_merge_attempts 0
|
|
|
|
|
index_page_merge_successful 0
|
|
|
|
|
set global innodb_purge_stop_now=ON;
|
|
|
|
|
delete from tab1 where a = 31;
|
|
|
|
|
set global innodb_purge_run_now=ON;
|
|
|
|
|
InnoDB 0 transactions not purged
|
|
|
|
|
# check page merge happens (MERGE_THRESHOLD=45 causes merge here)
|
|
|
|
|
SELECT name,count_reset FROM information_schema.innodb_metrics
|
|
|
|
|
WHERE name like 'index_page_merge_%';
|
|
|
|
|
name count_reset
|
|
|
|
|
index_page_merge_attempts 1
|
|
|
|
|
index_page_merge_successful 1
|
|
|
|
|
set global innodb_purge_stop_now=ON;
|
|
|
|
|
delete from tab1 where a = 30;
|
|
|
|
|
set global innodb_purge_run_now=ON;
|
|
|
|
|
InnoDB 0 transactions not purged
|
|
|
|
|
# check page merge happens (MERGE_THRESHOLD=40 causes merge here)
|
|
|
|
|
SELECT name,count_reset FROM information_schema.innodb_metrics
|
|
|
|
|
WHERE name like 'index_page_merge_%';
|
|
|
|
|
@@ -1323,3 +1309,4 @@ name count_reset
|
|
|
|
|
index_page_merge_attempts 2
|
|
|
|
|
index_page_merge_successful 2
|
|
|
|
|
DROP TABLE tab1;
|
|
|
|
|
SET GLOBAL innodb_purge_rseg_truncate_frequency = @saved_frequency;
|
|
|
|
|
|