diff --git a/source/client/src/clientImpl.c b/source/client/src/clientImpl.c
index 6a2a7bb5a246c58d2077a8df9f48777a3517c148..85255caff72dcaf3437c7d44c13008aeb719e382 100644
--- a/source/client/src/clientImpl.c
+++ b/source/client/src/clientImpl.c
@@ -1795,9 +1795,6 @@ static int32_t doConvertJson(SReqResultInfo* pResultInfo, int32_t numOfCols, int
       tscError("doConvertJson error: colLen:%d >= dataLen:%d", colLen, dataLen);
       return TSDB_CODE_TSC_INTERNAL_ERROR;
     }
-
-    if(colLen < dataLen)
-    
     if (pResultInfo->fields[i].type == TSDB_DATA_TYPE_JSON) {
       int32_t* offset = (int32_t*)pStart;
       int32_t* offset1 = (int32_t*)pStart1;