From f944634f8c89091274a2abe4f4a7ddf07406acd8 Mon Sep 17 00:00:00 2001
From: shenglian zhou <shenglian_zhou@163.com>
Date: Tue, 2 Nov 2021 09:48:59 +0800
Subject: [PATCH] fix error that allocate for pchildren array of function expr
 node

---
 src/common/src/texpr.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/common/src/texpr.c b/src/common/src/texpr.c
index 59ea613eab..f697e47074 100644
--- a/src/common/src/texpr.c
+++ b/src/common/src/texpr.c
@@ -147,6 +147,7 @@ static void doExprTreeDestroy(tExprNode **pExpr, void (*fp)(void *)) {
     for (int i = 0; i < (*pExpr)->_func.numChildren; ++i) {
       doExprTreeDestroy((*pExpr)->_func.pChildren + i, fp);
     }
+    free((*pExpr)->_func.pChildren);
   }
 
   free(*pExpr);
@@ -732,6 +733,7 @@ tExprNode* exprdup(tExprNode* pNode) {
   } else if (pNode->nodeType == TSQL_NODE_FUNC) {
     pCloned->_func.functionId = pNode->_func.functionId;
     pCloned->_func.numChildren = pNode->_func.numChildren;
+    pCloned->_func.pChildren = calloc(pNode->_func.numChildren, sizeof(tExprNode*));
     for (int i = 0; i < pNode->_func.numChildren; ++i) {
       pCloned->_func.pChildren[i] = exprdup(pNode->_func.pChildren[i]);
     }
-- 
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