diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index c6bc3c2288e0889d0a7f8f32d5dd24792530aa04..fc7db8f39566dae919728661dd6d31af9a74e1c1 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -900,7 +900,7 @@ bool validateOneTags(SSqlCmd* pCmd, TAOS_FIELD* pTagField) {
     return false;
   }
 
-  if (pTagField->type < TSDB_DATA_TYPE_BOOL && pTagField->type > TSDB_DATA_TYPE_NCHAR) {
+  if ((pTagField->type < TSDB_DATA_TYPE_BOOL) || (pTagField->type > TSDB_DATA_TYPE_NCHAR)) {
     invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg6);
     return false;
   }