diff --git a/source/dnode/vnode/src/tsdb/tsdbCache.c b/source/dnode/vnode/src/tsdb/tsdbCache.c
index a0c61a8699471fe7354da77ca49fd45c84eaf9a3..df7b940f61cd830a1425a81dea00d14b0fca1cfc 100644
--- a/source/dnode/vnode/src/tsdb/tsdbCache.c
+++ b/source/dnode/vnode/src/tsdb/tsdbCache.c
@@ -413,6 +413,7 @@ int32_t tsdbCacheGet(STsdb *pTsdb, tb_uid_t uid, SArray *pLastArray, SCacheRowsR
 
         if (pTmpColArray && TARRAY_SIZE(pTmpColArray) >= 1) {
           pLastCol = taosArrayGet(pTmpColArray, 0);
+          freeCol = false;
         }
 
         // still null, then make up a none col value