set pathtarget and parallel_aware/safe flags in redistribute_path

This fixes segfault in 'boolean' regression test suite.

diff --git a/src/backend/optimizer/util/pathnode.c b/src/backend/optimizer/util/pathnode.c
index 3bab1ed9f2d30ce3ec4071b2a61a189ff3a69543..a63afa139e9a974b69ab8c7e61aa31f2dc2b598c 100644 (file)
--- a/src/backend/optimizer/util/pathnode.c
+++ b/src/backend/optimizer/util/pathnode.c
@@ -1290,11 +1290,18 @@ redistribute_path(Path *subpath, char distributionType,
                        pathnode = makeNode(RemoteSubPath);
                        pathnode->path.pathtype = T_RemoteSubplan;
                        pathnode->path.parent = rel;
+                       pathnode->path.pathtarget = rel->reltarget;
                        pathnode->path.param_info = subpath->param_info;
                        pathnode->path.pathkeys = subpath->pathkeys;
                        pathnode->subpath = mpath->subpath;
+
+                       /* We don't want to run subplains in parallel workers */
+                       pathnode->path.parallel_aware = false;
+                       pathnode->path.parallel_safe = false;
+
                        mpath->subpath = (Path *) pathnode;
                }
+
                subpath = pathnode->subpath;
                pathnode->path.distribution = distribution;
                mpath->path.distribution = (Distribution *) copyObject(distribution);
@@ -1316,10 +1323,16 @@ redistribute_path(Path *subpath, char distributionType,
                pathnode = makeNode(RemoteSubPath);
                pathnode->path.pathtype = T_RemoteSubplan;
                pathnode->path.parent = rel;
+               pathnode->path.pathtarget = rel->reltarget;
                pathnode->path.param_info = subpath->param_info;
                pathnode->path.pathkeys = subpath->pathkeys;
                pathnode->subpath = subpath;
                pathnode->path.distribution = distribution;
+
+               /* We don't want to run subplains in parallel workers */
+               pathnode->path.parallel_aware = false;
+               pathnode->path.parallel_safe = false;
+
                cost_remote_subplan((Path *) pathnode, subpath->startup_cost,
                                                        subpath->total_cost, subpath->rows, rel->reltarget->width,
                                                        IsLocatorReplicated(distributionType) ?