diff --git a/source/dnode/vnode/src/tsdb/tsdbReadUtil.c b/source/dnode/vnode/src/tsdb/tsdbReadUtil.c
index acfb541706..c805d2f93f 100644
--- a/source/dnode/vnode/src/tsdb/tsdbReadUtil.c
+++ b/source/dnode/vnode/src/tsdb/tsdbReadUtil.c
@@ -137,7 +137,21 @@ int32_t initRowKey(SRowKey* pKey, int64_t ts, int32_t numOfPks, int32_t type, in
   if (numOfPks > 0) {
     pKey->pks[0].type = type;
     if (IS_NUMERIC_TYPE(pKey->pks[0].type)) {
-      pKey->pks[0].val = asc? INT64_MIN:INT64_MAX;
+      if (asc) {
+        switch(pKey->pks[0].type) {
+          case TSDB_DATA_TYPE_BIGINT:pKey->pks[0].val = INT64_MIN;break;
+          case TSDB_DATA_TYPE_INT:pKey->pks[0].val = INT32_MIN;break;
+          case TSDB_DATA_TYPE_SMALLINT:pKey->pks[0].val = INT16_MIN;break;
+          case TSDB_DATA_TYPE_TINYINT:pKey->pks[0].val = INT8_MIN;break;
+        }
+      } else {
+        switch(pKey->pks[0].type) {
+          case TSDB_DATA_TYPE_BIGINT:pKey->pks[0].val = INT64_MAX;break;
+          case TSDB_DATA_TYPE_INT:pKey->pks[0].val = INT32_MAX;break;
+          case TSDB_DATA_TYPE_SMALLINT:pKey->pks[0].val = INT16_MAX;break;
+          case TSDB_DATA_TYPE_TINYINT:pKey->pks[0].val = INT8_MAX;break;
+        }
+      }
     } else {
       pKey->pks[0].pData = taosMemoryCalloc(1, len);
       pKey->pks[0].nData = 0;