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unknown authored
Added a test case for bug #7769. item_sum.h: Fixed bug #7769: a crash for queries with group_concat and having when the query table was empty. The bug was due an unsafe dereferencing. sql/item_sum.h: Fixed bug #7769: a crash for queries with group_concat and having when the query table was empty. The bug was due an unsafe dereferencing. mysql-test/t/func_gconcat.test: Added a test case for bug #7769. mysql-test/r/func_gconcat.result: Added a test case for bug #7769.
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