diff options
Diffstat (limited to 'contrib/btree_gist/btree_macaddr8.c')
| -rw-r--r-- | contrib/btree_gist/btree_macaddr8.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/contrib/btree_gist/btree_macaddr8.c b/contrib/btree_gist/btree_macaddr8.c index 613a19e317b..f2b104617e6 100644 --- a/contrib/btree_gist/btree_macaddr8.c +++ b/contrib/btree_gist/btree_macaddr8.c @@ -7,6 +7,7 @@ #include "btree_utils_num.h" #include "utils/fmgrprotos.h" #include "utils/inet.h" +#include "utils/sortsupport.h" typedef struct { @@ -23,6 +24,7 @@ PG_FUNCTION_INFO_V1(gbt_macad8_picksplit); PG_FUNCTION_INFO_V1(gbt_macad8_consistent); PG_FUNCTION_INFO_V1(gbt_macad8_penalty); PG_FUNCTION_INFO_V1(gbt_macad8_same); +PG_FUNCTION_INFO_V1(gbt_macad8_sortsupport); static bool gbt_macad8gt(const void *a, const void *b, FmgrInfo *flinfo) @@ -185,3 +187,26 @@ gbt_macad8_same(PG_FUNCTION_ARGS) *result = gbt_num_same((void *) b1, (void *) b2, &tinfo, fcinfo->flinfo); PG_RETURN_POINTER(result); } + +static int +gbt_macaddr8_ssup_cmp(Datum x, Datum y, SortSupport ssup) +{ + mac8KEY *arg1 = (mac8KEY *) DatumGetPointer(x); + mac8KEY *arg2 = (mac8KEY *) DatumGetPointer(y); + + /* for leaf items we expect lower == upper, so only compare lower */ + return DatumGetInt32(DirectFunctionCall2(macaddr8_cmp, + Macaddr8PGetDatum(&arg1->lower), + Macaddr8PGetDatum(&arg2->lower))); +} + +Datum +gbt_macad8_sortsupport(PG_FUNCTION_ARGS) +{ + SortSupport ssup = (SortSupport) PG_GETARG_POINTER(0); + + ssup->comparator = gbt_macaddr8_ssup_cmp; + ssup->ssup_extra = NULL; + + PG_RETURN_VOID(); +} |