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mysqld maintains a list of TABLE objects for all temporary tables created within a session in THD. Here each table is represented by a TABLE object. A query referencing a particular temporary table for more than once, however, failed with ER_CANT_REOPEN_TABLE error because a TABLE_SHARE was allocate together with the TABLE, so temporary tables always had only one TABLE per TABLE_SHARE. This patch lift this restriction by separating TABLE and TABLE_SHARE objects and storing TABLE_SHAREs for temporary tables in a list in THD, and TABLEs in a list within their respective TABLE_SHAREs.
30 lines
657 B
Text
30 lines
657 B
Text
include/master-slave.inc
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[connection master]
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connection slave;
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reset master;
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#
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# MDEV-5535: Cannot reopen temporary table
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#
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connection master;
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DROP TABLE IF EXISTS t1, t2, t3;
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CREATE TEMPORARY TABLE t1(c1 INT) ENGINE=INNODB;
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INSERT INTO t1 VALUES (1), (2), (3), (4), (5);
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CREATE TEMPORARY TABLE t2 SELECT A.c1 a, B.c1 b FROM t1 AS A, t1 AS B;
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CREATE TABLE t3 SELECT * FROM t2;
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SELECT COUNT(*) = 5 FROM t1;
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COUNT(*) = 5
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1
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SELECT COUNT(*) = 25 FROM t2;
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COUNT(*) = 25
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1
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SELECT COUNT(*) = 25 FROM t3;
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COUNT(*) = 25
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1
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connection slave;
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SELECT COUNT(*) = 25 FROM t3;
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COUNT(*) = 25
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1
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connection master;
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DROP TABLE t1, t2, t3;
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connection slave;
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include/rpl_end.inc
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