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--echo #

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--echo # MDEV-17979 Assertion `0' failed in Item::val_native upon SELECT with timestamp, NULLIF, GROUP BY
--echo #
This commit is contained in:
Alexander Barkov
2018-12-12 10:39:06 +04:00
parent 4abb8216a0
commit c353b2a8fc
8 changed files with 125 additions and 1 deletions
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2
sql/sql_select.cc
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@ -23907,7 +23907,7 @@ setup_copy_fields(THD *thd, TMP_TABLE_PARAM *param,
on how the value is to be used: In some cases this may be an
argument in a group function, like: IF(ISNULL(col),0,COUNT(*))
*/
if (!(pos=new (thd->mem_root) Item_copy_string(thd, pos)))
if (!(pos= pos->type_handler()->create_item_copy(thd, pos)))
goto err;
if (i < border) // HAVING, ORDER and GROUP BY
{