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MDEV-33680 Server hangs or assertion fails upon SELECT with limited max_tmp_space_usage

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The bug was that Aggregator_distinct::add() did not properly handle
write errors. (Old bug exposed by the new code).
This commit is contained in:
Monty
2024-04-06 12:07:49 +03:00
committed by Sergei Golubchik
parent b9f5793176
commit 865ef0f567
5 changed files with 26 additions and 3 deletions
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4
sql/sql_expression_cache.cc
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@@ -307,7 +307,7 @@ my_bool Expression_cache_tmptable::put_value(Item *value)
cache_table_param.start_recinfo,
&cache_table_param.recinfo,
error, 1, NULL))
goto err;
goto err2;
}
}
}
@@ -318,6 +318,8 @@ my_bool Expression_cache_tmptable::put_value(Item *value)
DBUG_RETURN(FALSE);
err:
cache_table->file->print_error(error, MYF(0));
err2:
disable_cache();
DBUG_RETURN(TRUE);
}