[sql][prim] New _primv4 function with additional output column

Author: cvvergara

sql/spanningTree/_prim.sql

@@ -39,6 +39,29 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 ----------------
 
 
+--v3.7
+CREATE FUNCTION _pgr_primv4(
+  TEXT,     -- Edge sql
+  ANYARRAY, -- tree root for traversal
+  TEXT,     -- order by
+  BIGINT,   -- max depth
+  FLOAT,    -- distance
+
+  OUT seq BIGINT,
+  OUT depth BIGINT,
+  OUT start_vid BIGINT,
+  OUT pred BIGINT,
+  OUT node BIGINT,
+  OUT edge BIGINT,
+  OUT cost FLOAT,
+  OUT agg_cost FLOAT)
+RETURNS SETOF RECORD AS
+'MODULE_PATHNAME'
+LANGUAGE C VOLATILE STRICT;
+
+COMMENT ON FUNCTION _pgr_primv4(TEXT, ANYARRAY, TEXT, BIGINT, FLOAT)
+IS 'pgRouting internal function';
+
 --v3.0
 CREATE FUNCTION _pgr_prim(
     TEXT,             -- Edge sql
@@ -63,5 +86,5 @@ LANGUAGE C VOLATILE STRICT;
 
 
 COMMENT ON FUNCTION _pgr_prim(TEXT, ANYARRAY, TEXT, BIGINT, FLOAT)
-IS 'pgRouting internal function';
+IS 'pgRouting internal function deprecated on v3.7.0';