diff --git a/src/backend/commands/explain.c b/src/backend/commands/explain.c
index ee13136..d589b0d 100644
--- a/src/backend/commands/explain.c
+++ b/src/backend/commands/explain.c
@@ -346,8 +346,12 @@ ExplainOneQuery(Query *query, IntoClause *into, ExplainState *es,
 
 		INSTR_TIME_SET_CURRENT(planstart);
 
-		/* plan the query */
-		plan = pg_plan_query(query, CURSOR_OPT_PARALLEL_OK, params);
+		/* 
+		 * plan the query.
+		 * Note: If Explain is for CreateTableAs / SelectInto Avoid parallel
+		 *       plans.
+		 */
+		plan = pg_plan_query(query, into ? 0:CURSOR_OPT_PARALLEL_OK, params);
 
 		INSTR_TIME_SET_CURRENT(planduration);
 		INSTR_TIME_SUBTRACT(planduration, planstart);