diff options
Diffstat (limited to 'contrib/btree_gist/btree_int8.c')
| -rw-r--r-- | contrib/btree_gist/btree_int8.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/contrib/btree_gist/btree_int8.c b/contrib/btree_gist/btree_int8.c index 91f2d032d10..16db0028b7a 100644 --- a/contrib/btree_gist/btree_int8.c +++ b/contrib/btree_gist/btree_int8.c @@ -5,6 +5,7 @@ #include "btree_gist.h" #include "btree_utils_num.h" +#include "common/int.h" typedef struct int64key { @@ -99,15 +100,14 @@ int8_dist(PG_FUNCTION_ARGS) int64 r; int64 ra; - r = a - b; - ra = Abs(r); - - /* Overflow check. */ - if (ra < 0 || (!SAMESIGN(a, b) && !SAMESIGN(r, a))) + if (pg_sub_s64_overflow(a, b, &r) || + r == INT64_MIN) ereport(ERROR, (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE), errmsg("bigint out of range"))); + ra = Abs(r); + PG_RETURN_INT64(ra); } |