diff options
Diffstat (limited to 'contrib/btree_gist/btree_macaddr.c')
| -rw-r--r-- | contrib/btree_gist/btree_macaddr.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/contrib/btree_gist/btree_macaddr.c b/contrib/btree_gist/btree_macaddr.c index 41e693cb2c2..3b2f26719d5 100644 --- a/contrib/btree_gist/btree_macaddr.c +++ b/contrib/btree_gist/btree_macaddr.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_macad_picksplit); PG_FUNCTION_INFO_V1(gbt_macad_consistent); PG_FUNCTION_INFO_V1(gbt_macad_penalty); PG_FUNCTION_INFO_V1(gbt_macad_same); +PG_FUNCTION_INFO_V1(gbt_macaddr_sortsupport); static bool @@ -188,3 +190,26 @@ gbt_macad_same(PG_FUNCTION_ARGS) *result = gbt_num_same((void *) b1, (void *) b2, &tinfo, fcinfo->flinfo); PG_RETURN_POINTER(result); } + +static int +gbt_macaddr_ssup_cmp(Datum x, Datum y, SortSupport ssup) +{ + macKEY *arg1 = (macKEY *) DatumGetPointer(x); + macKEY *arg2 = (macKEY *) DatumGetPointer(y); + + /* for leaf items we expect lower == upper, so only compare lower */ + return DatumGetInt32(DirectFunctionCall2(macaddr_cmp, + MacaddrPGetDatum(&arg1->lower), + MacaddrPGetDatum(&arg2->lower))); +} + +Datum +gbt_macaddr_sortsupport(PG_FUNCTION_ARGS) +{ + SortSupport ssup = (SortSupport) PG_GETARG_POINTER(0); + + ssup->comparator = gbt_macaddr_ssup_cmp; + ssup->ssup_extra = NULL; + + PG_RETURN_VOID(); +} |