[td-225] add more check.

1175e834 · Haojun Liao · 01962da4 · 1175e834
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Showing with 4 addition and 1 deletion

src/query/src/qSqlParser.c src/query/src/qSqlParser.c +4 -1

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--- a/src/query/src/qSqlParser.c
+++ b/src/query/src/qSqlParser.c
@@ -474,7 +474,10 @@ SFromInfo *setSubquery(SFromInfo* pFromInfo, SQuerySqlNode* pSqlNode) {
 }

 void* destroyFromInfo(SFromInfo* pFromInfo) {
-  assert(pFromInfo != NULL);
+  if (pFromInfo == NULL) {
+    return NULL;
+  }
+
  if (pFromInfo->type == SQL_NODE_FROM_NAMELIST) {
    taosArrayDestroy(pFromInfo->tableList);
  } else {