diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index d0b3d91d3b7de030957b735bee9f43bda204fa96..8cca7ed7f8710d4be583017ccbc70ed4bbe910ed 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -6061,9 +6061,13 @@ int32_t exprTreeFromSqlExpr(tExprNode **pExpr, const tSQLExpr* pSqlExpr, SArray*
       }
     }
 
-    if (pRight->pVal->nType == TSDB_DATA_TYPE_BOOL || pRight->pVal->nType == TSDB_DATA_TYPE_BINARY || pRight->pVal->nType == TSDB_DATA_TYPE_NCHAR) {
-      if ((*pExpr)->_node.optr != TSDB_RELATION_EQUAL && (*pExpr)->_node.optr != TSDB_RELATION_NOT_EQUAL) {
-        return TSDB_CODE_TSC_INVALID_SQL;
+    if ((*pExpr)->_node.optr != TSDB_RELATION_EQUAL && (*pExpr)->_node.optr != TSDB_RELATION_NOT_EQUAL) {
+      if (pRight->nodeType == TSQL_NODE_VALUE) {
+        if (  pRight->pVal->nType == TSDB_DATA_TYPE_BOOL 
+           || pRight->pVal->nType == TSDB_DATA_TYPE_BINARY 
+           || pRight->pVal->nType == TSDB_DATA_TYPE_NCHAR) {
+          return TSDB_CODE_TSC_INVALID_SQL;
+        }
       }
     }
   }