diff options
Diffstat (limited to 'contrib/btree_gist/btree_ts.c')
| -rw-r--r-- | contrib/btree_gist/btree_ts.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/contrib/btree_gist/btree_ts.c b/contrib/btree_gist/btree_ts.c index ba3535892eb..eb899c4d213 100644 --- a/contrib/btree_gist/btree_ts.c +++ b/contrib/btree_gist/btree_ts.c @@ -10,6 +10,7 @@ #include "utils/fmgrprotos.h" #include "utils/timestamp.h" #include "utils/float.h" +#include "utils/sortsupport.h" typedef struct { @@ -29,6 +30,7 @@ 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 @@ -393,3 +395,26 @@ 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_ssup_cmp(Datum x, Datum y, SortSupport ssup) +{ + tsKEY *arg1 = (tsKEY *) DatumGetPointer(x); + tsKEY *arg2 = (tsKEY *) DatumGetPointer(y); + + /* for leaf items we expect lower == upper, so only compare lower */ + return DatumGetInt32(DirectFunctionCall2(timestamp_cmp, + TimestampGetDatumFast(arg1->lower), + TimestampGetDatumFast(arg2->lower))); +} + +Datum +gbt_ts_sortsupport(PG_FUNCTION_ARGS) +{ + SortSupport ssup = (SortSupport) PG_GETARG_POINTER(0); + + ssup->comparator = gbt_ts_ssup_cmp; + ssup->ssup_extra = NULL; + + PG_RETURN_VOID(); +} |