diff options
Diffstat (limited to 'contrib/btree_gist/btree_bool.c')
| -rw-r--r-- | contrib/btree_gist/btree_bool.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/contrib/btree_gist/btree_bool.c b/contrib/btree_gist/btree_bool.c index d2145d0d0c3..1127597bb60 100644 --- a/contrib/btree_gist/btree_bool.c +++ b/contrib/btree_gist/btree_bool.c @@ -5,6 +5,7 @@ #include "btree_gist.h" #include "btree_utils_num.h" +#include "utils/sortsupport.h" typedef struct boolkey { @@ -20,6 +21,7 @@ PG_FUNCTION_INFO_V1(gbt_bool_picksplit); PG_FUNCTION_INFO_V1(gbt_bool_consistent); PG_FUNCTION_INFO_V1(gbt_bool_penalty); PG_FUNCTION_INFO_V1(gbt_bool_same); +PG_FUNCTION_INFO_V1(gbt_bool_sortsupport); static bool gbt_boolgt(const void *a, const void *b, FmgrInfo *flinfo) @@ -161,3 +163,24 @@ gbt_bool_same(PG_FUNCTION_ARGS) *result = gbt_num_same((void *) b1, (void *) b2, &tinfo, fcinfo->flinfo); PG_RETURN_POINTER(result); } + +static int +gbt_bool_ssup_cmp(Datum x, Datum y, SortSupport ssup) +{ + boolKEY *arg1 = (boolKEY *) DatumGetPointer(x); + boolKEY *arg2 = (boolKEY *) DatumGetPointer(y); + + /* for leaf items we expect lower == upper, so only compare lower */ + return (int32) arg1->lower - (int32) arg2->lower; +} + +Datum +gbt_bool_sortsupport(PG_FUNCTION_ARGS) +{ + SortSupport ssup = (SortSupport) PG_GETARG_POINTER(0); + + ssup->comparator = gbt_bool_ssup_cmp; + ssup->ssup_extra = NULL; + + PG_RETURN_VOID(); +} |