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lp:923429 Crash in decimal_cmp on using UNIX_TIMESTAMP with a wrongly formatted timestamp

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UNIX_TIMESTAMP() can be null, and returns null for invalid values
This commit is contained in:
Sergei Golubchik
2012-02-21 21:18:41 +01:00
parent f93da174c5
commit c9fc9f7317
4 changed files with 20 additions and 13 deletions
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5
sql/item_timefunc.h
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@@ -385,11 +385,6 @@ public:
Item_func_unix_timestamp(Item *a) :Item_func_seconds_hybrid(a) {}
const char *func_name() const { return "unix_timestamp"; }
bool check_partition_func_processor(uchar *int_arg) {return FALSE;}
void fix_num_length_and_dec()
{
maybe_null= false;
Item_func_seconds_hybrid::fix_num_length_and_dec();
}
/*
UNIX_TIMESTAMP() depends on the current timezone
(and thus may not be used as a partitioning function)