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7d4beb7286
table for purge thread Problem: ======= Purge tries to fetch mdl lock for the whole table even though it tries to open one of the partition. But table name length was wrongly set to indicate the partition name too. Solution: ======== - Table name length should identify the table name only not the partition name.
113 lines
3.1 KiB
Plaintext
113 lines
3.1 KiB
Plaintext
SET @@session.default_storage_engine = 'InnoDB';
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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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drop table if exists t1;
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# Case 1. Partitioning by RANGE based on a non-stored generated column.
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CREATE TABLE t1 (
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a DATE NOT NULL,
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b int generated always as (year(a)) virtual
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)
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PARTITION BY RANGE( b ) (
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PARTITION p0 VALUES LESS THAN (2006),
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PARTITION p2 VALUES LESS THAN (2008)
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);
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insert into t1 values ('2006-01-01',default);
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insert into t1 values ('2007-01-01',default);
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insert into t1 values ('2005-01-01',default);
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select * from t1;
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a b
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2005-01-01 2005
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2006-01-01 2006
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2007-01-01 2007
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# Modify the expression of generated column b
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ALTER TABLE t1 modify b int generated always as (year(a)-1) virtual;
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select * from t1;
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a b
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2005-01-01 2004
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2006-01-01 2005
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2007-01-01 2006
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drop table t1;
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# Case 2. Partitioning by LIST based on a stored generated column.
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CREATE TABLE t1 (a int, b int generated always as (a % 3 ) stored)
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PARTITION BY LIST (a+1)
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(PARTITION p1 VALUES IN (1), PARTITION p2 VALUES IN (2));
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insert into t1 values (1,default);
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select * from t1;
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a b
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1 1
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select * from t1;
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a b
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1 1
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drop table t1;
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# Case 3. Partitioning by HASH based on a non-stored generated column.
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CREATE TABLE t1 (
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a DATE NOT NULL,
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b int generated always as (year(a)) virtual
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)
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PARTITION BY HASH( b % 3 ) PARTITIONS 3;
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insert into t1 values ('2005-01-01',default);
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insert into t1 values ('2006-01-01',default);
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select * from t1;
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a b
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2005-01-01 2005
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2006-01-01 2006
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# Modify the expression of generated column b
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ALTER TABLE t1 modify b int generated always as (year(a)-1) virtual;
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select * from t1;
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a b
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2005-01-01 2004
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2006-01-01 2005
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drop table t1;
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#
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# Bug#21779011 INVALID READS AND SENDING RANDOM SERVER MEMORY BACK
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# TO CLIENT
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#
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CREATE TABLE t (
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c INTEGER GENERATED ALWAYS AS (2) VIRTUAL,
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d INTEGER,
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KEY (d)
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) PARTITION BY KEY (d) PARTITIONS 2;
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INSERT INTO t (d) VALUES (1),(1),(2),(2);
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SELECT c FROM t WHERE d >= 1 GROUP BY d LIMIT 2;
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c
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2
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2
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DROP TABLE t;
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#
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# Bug#21779554: CHECK_MISPLACED_ROWS BOGUS "FOUND A MISPLACED ROW"
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# AND CRASHES
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#
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CREATE TABLE t(a INT,b INT GENERATED ALWAYS AS (1) VIRTUAL,c INT)
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PARTITION BY KEY (b)PARTITIONS 6;
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INSERT INTO t VALUES();
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CHECK TABLE t EXTENDED;
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Table Op Msg_type Msg_text
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test.t check status OK
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FLUSH TABLES;
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CHECK TABLE t EXTENDED;
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Table Op Msg_type Msg_text
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test.t check status OK
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DROP TABLE t;
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#
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# MDEV-16980 Wrongly set tablename len while opening the
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# table for purge thread
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#
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CREATE TABLE t1(pk SERIAL, d DATE, vd DATE AS (d) VIRTUAL,
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PRIMARY KEY(pk), KEY (vd))ENGINE=InnoDB
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PARTITION BY HASH(pk) PARTITIONS 2;
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INSERT IGNORE INTO t1 (d) VALUES ('2015-04-14');
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SET sql_mode= '';
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REPLACE INTO t1 SELECT * FROM t1;
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Warnings:
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Warning 1906 The value specified for generated column 'vd' in table 't1' ignored
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DROP TABLE t1;
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InnoDB 0 transactions not purged
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DROP VIEW IF EXISTS v1,v2;
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DROP TABLE IF EXISTS t1,t2,t3;
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DROP PROCEDURE IF EXISTS p1;
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DROP FUNCTION IF EXISTS f1;
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DROP TRIGGER IF EXISTS trg1;
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DROP TRIGGER IF EXISTS trg2;
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set sql_warnings = 0;
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SET GLOBAL innodb_purge_rseg_truncate_frequency = @saved_frequency;
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