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Bug#40595: Non-matching rows not released with READ-COMMITTED
on tables with partitions Problem was that the handler function try_semi_consistent_read was not propagated to the innodb handler. Solution was to implement that function in the partitioning handler. mysql-test/r/partition_innodb.result: Bug#40595: Non-matching rows not released with READ-COMMITTED on tables with partitions Updated test result. mysql-test/t/partition_innodb.test: Bug#40595: Non-matching rows not released with READ-COMMITTED on tables with partitions Added test case for bug#40595. Note: the replace_regex is taking long time. I have not found any better regex (it takes time using 'sed' too). sql/ha_partition.cc: Bug#40595: Non-matching rows not released with READ-COMMITTED on tables with partitions Added function to the partitioning handler for handling semi consistent reads (unlock_row was already implemented, and this is needed for unlock_row to work properly in innodb). It uses pruning for optimizing the call. sql/ha_partition.h: Bug#40595: Non-matching rows not released with READ-COMMITTED on tables with partitions Added function to the partitioning handler for handling semi consistent reads (unlock_row was already implemented, and this is needed for unlock_row to work properly in innodb).
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@ -1,3 +1,25 @@
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drop table if exists t1;
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CREATE TABLE t1 (id INT PRIMARY KEY, data INT) ENGINE = InnoDB
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PARTITION BY RANGE(id) (
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PARTITION p0 VALUES LESS THAN (5),
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PARTITION p1 VALUES LESS THAN (10),
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PARTITION p2 VALUES LESS THAN MAXVALUE
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);
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INSERT INTO t1 VALUES (1,1), (2,2), (3,3), (4,4), (5,5), (6,6), (7,7), (8,8),
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(9,9), (10,10), (11,11);
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SET @old_tx_isolation := @@session.tx_isolation;
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SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
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SET autocommit = 0;
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UPDATE t1 SET DATA = data*2 WHERE id = 3;
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SHOW ENGINE InnoDB STATUS;
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Type Name Status
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InnoDB 2 lock struct(s) 1 row lock(s)
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UPDATE t1 SET data = data*2 WHERE data = 2;
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SHOW ENGINE InnoDB STATUS;
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Type Name Status
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InnoDB 6 lock struct(s) 2 row lock(s)
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SET @@session.tx_isolation = @old_tx_isolation;
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DROP TABLE t1;
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# Bug#37721, test of ORDER BY on PK and WHERE on INDEX
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CREATE TABLE t1 (
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a INT,
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@ -1,6 +1,44 @@
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--source include/have_partition.inc
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--source include/have_innodb.inc
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--disable_warnings
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drop table if exists t1;
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--enable_warnings
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#
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# Bug#40595: Non-matching rows not released with READ-COMMITTED on tables
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# with partitions
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CREATE TABLE t1 (id INT PRIMARY KEY, data INT) ENGINE = InnoDB
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PARTITION BY RANGE(id) (
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PARTITION p0 VALUES LESS THAN (5),
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PARTITION p1 VALUES LESS THAN (10),
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PARTITION p2 VALUES LESS THAN MAXVALUE
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);
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INSERT INTO t1 VALUES (1,1), (2,2), (3,3), (4,4), (5,5), (6,6), (7,7), (8,8),
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(9,9), (10,10), (11,11);
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SET @old_tx_isolation := @@session.tx_isolation;
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SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
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SET autocommit = 0;
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UPDATE t1 SET DATA = data*2 WHERE id = 3;
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# NOTE: This regex takes quite a long time (> 1 sec).
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--replace_regex /.*[^[:alnum:]]+([0-9]+ lock struct.s.), heap size [0-9]+, ([0-9]+ row lock.s.), undo log entries .*/\1 \2/
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SHOW ENGINE InnoDB STATUS;
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UPDATE t1 SET data = data*2 WHERE data = 2;
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# NOTE: This regex takes quite a long time (> 1 sec).
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--replace_regex /.*[^[:alnum:]]+([0-9]+ lock struct.s.), heap size [0-9]+, ([0-9]+ row lock.s.), undo log entries .*/\1 \2/
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SHOW ENGINE InnoDB STATUS;
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SET @@session.tx_isolation = @old_tx_isolation;
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DROP TABLE t1;
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#
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# Bug37721: ORDER BY when WHERE contains non-partitioned index column
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# wrong order since it did not use pk as second compare
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