diff options
Diffstat (limited to 'contrib/btree_gist/btree_ts.c')
| -rw-r--r-- | contrib/btree_gist/btree_ts.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/contrib/btree_gist/btree_ts.c b/contrib/btree_gist/btree_ts.c index 2671ba961cd..c6ef0782d24 100644 --- a/contrib/btree_gist/btree_ts.c +++ b/contrib/btree_gist/btree_ts.c @@ -31,6 +31,7 @@ PG_FUNCTION_INFO_V1(gbt_tstz_consistent); PG_FUNCTION_INFO_V1(gbt_tstz_distance); PG_FUNCTION_INFO_V1(gbt_ts_penalty); PG_FUNCTION_INFO_V1(gbt_ts_same); +PG_FUNCTION_INFO_V1(gbt_ts_sortsupport); #ifdef USE_FLOAT8_BYVAL @@ -399,3 +400,29 @@ gbt_ts_same(PG_FUNCTION_ARGS) *result = gbt_num_same((void *) b1, (void *) b2, &tinfo, fcinfo->flinfo); PG_RETURN_POINTER(result); } + +static int +gbt_ts_sort_build_cmp(Datum a, Datum b, SortSupport ssup) +{ + tsKEY *ia = (tsKEY *) DatumGetPointer(a); + tsKEY *ib = (tsKEY *) DatumGetPointer(b); + + return DatumGetInt32(DirectFunctionCall2(timestamp_cmp, + TimestampGetDatumFast(ia->lower), + TimestampGetDatumFast(ib->lower))); +} + +/* + * Sort support routine for fast GiST index build by sorting. + */ +Datum +gbt_ts_sortsupport(PG_FUNCTION_ARGS) +{ + SortSupport ssup = (SortSupport) PG_GETARG_POINTER(0); + + ssup->comparator = gbt_ts_sort_build_cmp; + ssup->abbrev_converter = NULL; + ssup->abbrev_abort = NULL; + ssup->abbrev_full_comparator = NULL; + PG_RETURN_VOID(); +} |