diff options
Diffstat (limited to 'src/backend/utils/adt/varchar.c')
| -rw-r--r-- | src/backend/utils/adt/varchar.c | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/src/backend/utils/adt/varchar.c b/src/backend/utils/adt/varchar.c index eeb218bf57a..17d775d23b9 100644 --- a/src/backend/utils/adt/varchar.c +++ b/src/backend/utils/adt/varchar.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/utils/adt/varchar.c,v 1.108 2004/12/31 22:01:22 pgsql Exp $ + * $PostgreSQL: pgsql/src/backend/utils/adt/varchar.c,v 1.109 2005/04/12 04:26:26 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -687,6 +687,40 @@ bpcharcmp(PG_FUNCTION_ARGS) PG_RETURN_INT32(cmp); } +Datum +bpchar_larger(PG_FUNCTION_ARGS) +{ + BpChar *arg1 = PG_GETARG_BPCHAR_P(0); + BpChar *arg2 = PG_GETARG_BPCHAR_P(1); + int len1, + len2; + int cmp; + + len1 = bcTruelen(arg1); + len2 = bcTruelen(arg2); + + cmp = varstr_cmp(VARDATA(arg1), len1, VARDATA(arg2), len2); + + PG_RETURN_BPCHAR_P((cmp >= 0) ? arg1 : arg2); +} + +Datum +bpchar_smaller(PG_FUNCTION_ARGS) +{ + BpChar *arg1 = PG_GETARG_BPCHAR_P(0); + BpChar *arg2 = PG_GETARG_BPCHAR_P(1); + int len1, + len2; + int cmp; + + len1 = bcTruelen(arg1); + len2 = bcTruelen(arg2); + + cmp = varstr_cmp(VARDATA(arg1), len1, VARDATA(arg2), len2); + + PG_RETURN_BPCHAR_P((cmp <= 0) ? arg1 : arg2); +} + /* * bpchar needs a specialized hash function because we want to ignore |