diff options
Diffstat (limited to 'src/backend/utils/adt/varlena.c')
| -rw-r--r-- | src/backend/utils/adt/varlena.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/backend/utils/adt/varlena.c b/src/backend/utils/adt/varlena.c index d46ed3ccf9f..533bebc1c7b 100644 --- a/src/backend/utils/adt/varlena.c +++ b/src/backend/utils/adt/varlena.c @@ -3932,6 +3932,44 @@ byteacmp(PG_FUNCTION_ARGS) } Datum +bytea_larger(PG_FUNCTION_ARGS) +{ + bytea *arg1 = PG_GETARG_BYTEA_PP(0); + bytea *arg2 = PG_GETARG_BYTEA_PP(1); + bytea *result; + int len1, + len2; + int cmp; + + len1 = VARSIZE_ANY_EXHDR(arg1); + len2 = VARSIZE_ANY_EXHDR(arg2); + + cmp = memcmp(VARDATA_ANY(arg1), VARDATA_ANY(arg2), Min(len1, len2)); + result = ((cmp > 0) || ((cmp == 0) && (len1 > len2)) ? arg1 : arg2); + + PG_RETURN_BYTEA_P(result); +} + +Datum +bytea_smaller(PG_FUNCTION_ARGS) +{ + bytea *arg1 = PG_GETARG_BYTEA_PP(0); + bytea *arg2 = PG_GETARG_BYTEA_PP(1); + bytea *result; + int len1, + len2; + int cmp; + + len1 = VARSIZE_ANY_EXHDR(arg1); + len2 = VARSIZE_ANY_EXHDR(arg2); + + cmp = memcmp(VARDATA_ANY(arg1), VARDATA_ANY(arg2), Min(len1, len2)); + result = ((cmp < 0) || ((cmp == 0) && (len1 < len2)) ? arg1 : arg2); + + PG_RETURN_BYTEA_P(result); +} + +Datum bytea_sortsupport(PG_FUNCTION_ARGS) { SortSupport ssup = (SortSupport) PG_GETARG_POINTER(0); |