Fix print of Path nodes when using OPTIMIZER_DEBUG

GatherMergePath (introduced in 10) and CustomPath (introduced in 9.5)
have gone missing.  The order of the Path nodes was inconsistent with
what is listed in nodes.h, so make the order consistent at the same time
to ease future checks and additions.

Author: Sawada Masahiko
Reviewed-by: Michael Paquier
Discussion: https://postgr.es/m/CAD21AoBQMLoc=ohH-oocuAPsELrmk8_EsRJjOyR8FQLZkbE0wA@mail.gmail.com

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index 05f003ca6d3bdb03eeea0e4ae02bd6ff61d58ab6..b4a1e8ba21427d4c19ef8b95afef476a09e9f2e2 100644 (file)
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -2958,6 +2958,21 @@ print_path(PlannerInfo *root, Path *path, int indent)
        case T_ForeignPath:
            ptype = "ForeignScan";
            break;
+       case T_CustomPath:
+           ptype = "CustomScan";
+           break;
+       case T_NestPath:
+           ptype = "NestLoop";
+           join = true;
+           break;
+       case T_MergePath:
+           ptype = "MergeJoin";
+           join = true;
+           break;
+       case T_HashPath:
+           ptype = "HashJoin";
+           join = true;
+           break;
        case T_AppendPath:
            ptype = "Append";
            break;
@@ -3028,18 +3043,6 @@ print_path(PlannerInfo *root, Path *path, int indent)
            ptype = "Limit";
            subpath = ((LimitPath *) path)->subpath;
            break;
-       case T_NestPath:
-           ptype = "NestLoop";
-           join = true;
-           break;
-       case T_MergePath:
-           ptype = "MergeJoin";
-           join = true;
-           break;
-       case T_HashPath:
-           ptype = "HashJoin";
-           join = true;
-           break;
        default:
            ptype = "???Path";
            break;