From 28eb7627fdaa15b4bf1126913db2b4c9bf7d6788 Mon Sep 17 00:00:00 2001
From: wlx5575 <w0906lx@163.com>
Date: Fri, 26 Aug 2022 15:59:04 +0800
Subject: [PATCH] fix subquery and quer with limit

---
 .../java/com/jd/jdbc/engine/PulloutSubqueryEngine.java     | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/main/java/com/jd/jdbc/engine/PulloutSubqueryEngine.java b/src/main/java/com/jd/jdbc/engine/PulloutSubqueryEngine.java
index 214294f..f809cfa 100644
--- a/src/main/java/com/jd/jdbc/engine/PulloutSubqueryEngine.java
+++ b/src/main/java/com/jd/jdbc/engine/PulloutSubqueryEngine.java
@@ -84,7 +84,12 @@ public IExecute.ExecuteMultiShardResponse execute(IContext ctx, Vcursor vcursor,
      * @return
      */
     private BindVarsResponse execSubqery(IContext ctx, Vcursor vcursor, Map<String, BindVariable> bindVariableMap, boolean wantFields) throws SQLException {
-        IExecute.ExecuteMultiShardResponse subResultSet = this.subquery.execute(ctx, vcursor, bindVariableMap, wantFields);
+
+        Map<String, BindVariable> subBindVarMap = bindVariableMap;
+        if (bindVariableMap != null) {
+            subBindVarMap = new HashMap<>(bindVariableMap);
+        }
+        IExecute.ExecuteMultiShardResponse subResultSet = this.subquery.execute(ctx, vcursor, subBindVarMap, wantFields);
         if (subResultSet.getVtRowList() == null) {
             throw new SQLException("VtRowList is null");
         }