ossp-pkg/uuid/pgsql/uuid.c 1.3 -> 1.4
--- uuid.c 2006/02/07 08:19:15 1.3
+++ uuid.c 2006/05/11 18:32:07 1.4
@@ -39,10 +39,11 @@
/* PostgreSQL (part 2/2) headers */
#include "fmgr.h"
#include "lib/stringinfo.h"
+#include "access/hash.h"
/* internal UUID datum data structure */
typedef struct {
- char uuid_bin[UUID_LEN_BIN];
+ unsigned char uuid_bin[UUID_LEN_BIN];
} uuid_datum_t;
/* forward declarations */
@@ -50,9 +51,15 @@
Datum pg_uuid_out (PG_FUNCTION_ARGS);
Datum pg_uuid_recv (PG_FUNCTION_ARGS);
Datum pg_uuid_send (PG_FUNCTION_ARGS);
+Datum pg_uuid_hash (PG_FUNCTION_ARGS);
Datum pg_uuid_make (PG_FUNCTION_ARGS);
Datum pg_uuid_eq (PG_FUNCTION_ARGS);
Datum pg_uuid_ne (PG_FUNCTION_ARGS);
+Datum pg_uuid_lt (PG_FUNCTION_ARGS);
+Datum pg_uuid_gt (PG_FUNCTION_ARGS);
+Datum pg_uuid_le (PG_FUNCTION_ARGS);
+Datum pg_uuid_ge (PG_FUNCTION_ARGS);
+Datum pg_uuid_cmp (PG_FUNCTION_ARGS);
/* API function: uuid_in */
PG_FUNCTION_INFO_V1(pg_uuid_in);
@@ -323,6 +330,23 @@
PG_RETURN_POINTER(uuid_datum);
}
+/* API function: uuid_hash */
+PG_FUNCTION_INFO_V1(pg_uuid_hash);
+Datum pg_uuid_hash(PG_FUNCTION_ARGS)
+{
+ uuid_datum_t *uuid_datum;
+
+ /* sanity check input argument */
+ if ((uuid_datum = (uuid_datum_t *)PG_GETARG_POINTER(0)) == NULL) {
+ ereport(ERROR, (errcode(ERRCODE_DATA_EXCEPTION),
+ errmsg("invalid UUID datum argument")));
+ PG_RETURN_NULL();
+ }
+
+ /* return hash value of the UUID */
+ PG_RETURN_INT32(hash_any(uuid_datum->uuid_bin, sizeof(uuid_datum->uuid_bin)));
+}
+
/* INTERNAL function: _uuid_cmp */
static int _uuid_cmp(PG_FUNCTION_ARGS)
{
@@ -407,3 +431,53 @@
PG_RETURN_BOOL(rc != 0);
}
+/* API function: uuid_lt */
+PG_FUNCTION_INFO_V1(pg_uuid_lt);
+Datum pg_uuid_lt(PG_FUNCTION_ARGS)
+{
+ int rc;
+
+ rc = _uuid_cmp(fcinfo);
+ PG_RETURN_BOOL(rc == -1);
+}
+
+/* API function: uuid_gt */
+PG_FUNCTION_INFO_V1(pg_uuid_gt);
+Datum pg_uuid_gt(PG_FUNCTION_ARGS)
+{
+ int rc;
+
+ rc = _uuid_cmp(fcinfo);
+ PG_RETURN_BOOL(rc == 1);
+}
+
+/* API function: uuid_le */
+PG_FUNCTION_INFO_V1(pg_uuid_le);
+Datum pg_uuid_le(PG_FUNCTION_ARGS)
+{
+ int rc;
+
+ rc = _uuid_cmp(fcinfo);
+ PG_RETURN_BOOL(rc < 1);
+}
+
+/* API function: uuid_ge */
+PG_FUNCTION_INFO_V1(pg_uuid_ge);
+Datum pg_uuid_ge(PG_FUNCTION_ARGS)
+{
+ int rc;
+
+ rc = _uuid_cmp(fcinfo);
+ PG_RETURN_BOOL(rc > -1);
+}
+
+/* API function: uuid_cmp */
+PG_FUNCTION_INFO_V1(pg_uuid_cmp);
+Datum pg_uuid_cmp(PG_FUNCTION_ARGS)
+{
+ int rc;
+
+ rc = _uuid_cmp(fcinfo);
+ PG_RETURN_INT32(rc);
+}
+
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