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storage/innobase/handler/handler0alter.cc: for NEWDATE key_type says unsigned, thus col->prtype says unsigned, but field->flags says signed. Use the same flag for value retrieval that was used for value storage.
11 lines
326 B
Plaintext
11 lines
326 B
Plaintext
--source include/have_innodb.inc
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# Bug #40565 Update Query Results in "1 Row Affected" But Should Be "Zero Rows"
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create table bug40565(value decimal(4,2)) engine=innodb;
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insert into bug40565 values (1), (null);
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--enable_info
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update bug40565 set value=NULL;
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update bug40565 set value=NULL;
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--disable_info
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drop table bug40565;
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