Fix incorrect lack of Datum conversion in _int_matchsel()
The code used
return (Selectivity) 0.0;
where
PG_RETURN_FLOAT8(0.0);
would be correct.
On 64-bit systems, these are pretty much equivalent, but on 32-bit
systems, PG_RETURN_FLOAT8() correctly produces a pointer, but the old
wrong code would return a null pointer, possibly leading to a crash
elsewhere.
We think this code is actually not reachable because bqarr_in won't
accept an empty query, and there is no other function that will
create query_int values. But better be safe and not let such
incorrect code lie around.
Reviewed-by: Tom Lane <t...@sss.pgh.pa.us>
Discussion:
https://www.postgresql.org/message-id/flat/8246d7ff-f4b7-4363-913e-827dadfeb145%40eisentraut.org
Branch
------
REL_15_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/f0d55b68ef920b5ed22c3788a5dfc15fe1f70be7
Modified Files
--------------
contrib/intarray/_int_selfuncs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
