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ac15141448
The memory allocated for an instance of the class Item_direct_ref_to_item was leaked on second execution of a query run as a prepared statement and involving conversion of strings with different character sets. The reason of leaking the memory was caused by the fact that a statement arena could be already set by the moment the method Type_std_attributes::agg_item_set_converter() is called.
16 lines
403 B
Text
16 lines
403 B
Text
#
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# MDEV-32369: Memory leak when executing PS for query with IN subquery
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#
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CREATE TABLE t1 (a VARCHAR(10)) ENGINE=MYISAM;
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CREATE TABLE t2 (b VARCHAR(10) CHARACTER SET utf8) ENGINE=MYISAM;
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INSERT INTO t1 VALUES ('b');
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INSERT INTO t2 VALUES ('b');
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PREPARE stmt FROM "SELECT t1.a FROM t1 WHERE t1.a IN (SELECT t2.b FROM t2)";
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EXECUTE stmt;
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a
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b
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EXECUTE stmt;
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a
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b
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DEALLOCATE PREPARE stmt;
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DROP TABLE t1, t2;
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