diff options
Diffstat (limited to 'contrib/btree_gist/btree_interval.c')
| -rw-r--r-- | contrib/btree_gist/btree_interval.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/contrib/btree_gist/btree_interval.c b/contrib/btree_gist/btree_interval.c index a4b3b2b1e6f..0041acd3ddd 100644 --- a/contrib/btree_gist/btree_interval.c +++ b/contrib/btree_gist/btree_interval.c @@ -27,6 +27,7 @@ PG_FUNCTION_INFO_V1(gbt_intv_consistent); PG_FUNCTION_INFO_V1(gbt_intv_distance); PG_FUNCTION_INFO_V1(gbt_intv_penalty); PG_FUNCTION_INFO_V1(gbt_intv_same); +PG_FUNCTION_INFO_V1(gbt_intv_sortsupport); static bool @@ -297,3 +298,29 @@ gbt_intv_same(PG_FUNCTION_ARGS) *result = gbt_num_same((void *) b1, (void *) b2, &tinfo, fcinfo->flinfo); PG_RETURN_POINTER(result); } + +static int +gbt_intv_sort_build_cmp(Datum a, Datum b, SortSupport ssup) +{ + intvKEY *ia = (intvKEY *) DatumGetPointer(a); + intvKEY *ib = (intvKEY *) DatumGetPointer(b); + + return DatumGetInt32(DirectFunctionCall2(interval_cmp, + IntervalPGetDatum(&ia->lower), + IntervalPGetDatum(&ib->lower))); +} + +/* + * Sort support routine for fast GiST index build by sorting. + */ +Datum +gbt_intv_sortsupport(PG_FUNCTION_ARGS) +{ + SortSupport ssup = (SortSupport) PG_GETARG_POINTER(0); + + ssup->comparator = gbt_intv_sort_build_cmp; + ssup->abbrev_converter = NULL; + ssup->abbrev_abort = NULL; + ssup->abbrev_full_comparator = NULL; + PG_RETURN_VOID(); +} |