diff --git a/src/client/src/tscParseInsert.c b/src/client/src/tscParseInsert.c
index 41bfe3456173fe3c87eac7a09fcaf3ae42dea38d..2b962333d588117ba54f363b7da586b6f04e3d47 100644
--- a/src/client/src/tscParseInsert.c
+++ b/src/client/src/tscParseInsert.c
@@ -394,7 +394,7 @@ static int32_t tsCheckTimestamp(STableDataBlocks *pDataBlocks, const char *start
 
   TSKEY k = *(TSKEY *)start;
 
-  if (k == 0) {
+  if (k == INT64_MIN) {
     if (pDataBlocks->tsSource == TSDB_USE_CLI_TS) {
       return -1;
     } else if (pDataBlocks->tsSource == -1) {