diff --git a/src/query/src/qExecutor.c b/src/query/src/qExecutor.c
index 1be4334d19e0fbffc079f53eadd8aae71c2f777e..3edd19e016cd08e2ef1e8f7f3a5dfbc7c3252e79 100644
--- a/src/query/src/qExecutor.c
+++ b/src/query/src/qExecutor.c
@@ -5433,21 +5433,25 @@ static SSDataBlock* doTableScanImpl(void* param, bool* newgroup) {
       }
 
       // check windows condition
-      int64_t skey = (*pTableQueryInfo)->win.skey;
-      if (QUERY_IS_ASC_QUERY(pQueryAttr)) {
-        // ASC
-        if ( skey > pBlock->info.window.ekey ) {
-          qWarn(" pTableQueryInfo skey(%" PRId64 ") > pBlock ekey(%" PRId64 "), so remove this block. pBlock skey=%" PRId64 " tid=%d",
-                  skey, pBlock->info.window.ekey, pBlock->info.window.skey, pBlock->info.tid);
-          continue;
-        }
-      } else {
-        // DESC
-        if ( skey < pBlock->info.window.skey ) {
-          qWarn(" pTableQueryInfo skey(%" PRId64 ") < pBlock skey(%" PRId64 "), so remove this block. pBlock ekey=%" PRId64 "tid=%d",
-                skey, pBlock->info.window.skey, pBlock->info.window.ekey, pBlock->info.tid);
-          continue;
-        }
+      if (pBlock->info.window.skey != INT64_MIN && pBlock->info.window.skey != INT64_MAX &&
+          pBlock->info.window.ekey != INT64_MIN && pBlock->info.window.ekey != INT64_MAX) {
+            // normal block not specail block like last_row
+            int64_t skey = (*pTableQueryInfo)->win.skey;
+            if (QUERY_IS_ASC_QUERY(pQueryAttr)) {
+              // ASC
+              if ( skey > pBlock->info.window.ekey ) {
+                qWarn(" pTableQueryInfo skey(%" PRId64 ") > pBlock ekey(%" PRId64 "), so remove this block. pBlock skey=%" PRId64 " tid=%d",
+                        skey, pBlock->info.window.ekey, pBlock->info.window.skey, pBlock->info.tid);
+                continue;
+              }
+            } else {
+              // DESC
+              if ( skey < pBlock->info.window.skey ) {
+                qWarn(" pTableQueryInfo skey(%" PRId64 ") < pBlock skey(%" PRId64 "), so remove this block. pBlock ekey=%" PRId64 "tid=%d",
+                      skey, pBlock->info.window.skey, pBlock->info.window.ekey, pBlock->info.tid);
+                continue;
+              }
+            }
       }
 
       pRuntimeEnv->current = *pTableQueryInfo;