From e86e9d6c9f7f0c9ebb057cdf30c762433473a289 Mon Sep 17 00:00:00 2001
From: "houzj.fnst" <63178771+sherlockcpp@users.noreply.github.com>
Date: Thu, 9 Jul 2020 15:09:05 +0800
Subject: [PATCH 4/5] Update pool_select_walker.c

---
 src/utils/pool_select_walker.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/utils/pool_select_walker.c b/src/utils/pool_select_walker.c
index 1bbda8a..b9075b5 100644
--- a/src/utils/pool_select_walker.c
+++ b/src/utils/pool_select_walker.c
@@ -1210,6 +1210,12 @@ select_table_walker(Node *node, void *context)
 		}
 	}
 
+	/* Skip Data-Modifying Statements in SELECT. */
+	else if (IsA(node, InsertStmt) || IsA(node, DeleteStmt) || IsA(node, UpdateStmt))
+	{
+		return false;
+	}
+
 	return raw_expression_tree_walker(node, select_table_walker, context);
 }
 
-- 
1.8.3.1