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-rw-r--r--src/backend/optimizer/prep/prepunion.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/src/backend/optimizer/prep/prepunion.c b/src/backend/optimizer/prep/prepunion.c
index 2522636392..a8163bfaff 100644
--- a/src/backend/optimizer/prep/prepunion.c
+++ b/src/backend/optimizer/prep/prepunion.c
@@ -313,6 +313,19 @@ recurse_set_operations(Node *setOp, PlannerInfo *root,
subpath = get_cheapest_fractional_path(final_rel,
root->tuple_fraction);
+#ifdef XCP
+ /*
+ * create remote_subplan_path if needed, and we'll use this path to
+ * create remote_subplan at the top.
+ */
+ if(subpath->distribution)
+ {
+ subpath = create_remotesubplan_path(NULL, subpath, NULL);
+
+ subroot->distribution = NULL;
+ }
+#endif
+
/*
* Stick a SubqueryScanPath atop that.
*