diff --git a/src/gausskernel/storage/access/nbtree/spq_btbuild.cpp b/src/gausskernel/storage/access/nbtree/spq_btbuild.cpp
index cbca6f4ba..d81e763da 100644
--- a/src/gausskernel/storage/access/nbtree/spq_btbuild.cpp
+++ b/src/gausskernel/storage/access/nbtree/spq_btbuild.cpp
@@ -344,10 +344,7 @@ void spq_build_main(const BgWorkerContext *bwc)
     LOCKMODE heapLockmode = NoLock;
     LOCKMODE indexLockmode = NoLock;
 
-    if (!shared->isconcurrent) {
-        heapLockmode = ShareLock;
-        indexLockmode = AccessExclusiveLock;
-    } else {
+    if (shared->isconcurrent) {
         heapLockmode = ShareUpdateExclusiveLock;
         indexLockmode = RowExclusiveLock;
     }
@@ -666,4 +663,4 @@ void condition_signal(SPQSharedContext *shared)
     (void)pthread_cond_signal(&shared->m_cond);
     (void)pthread_mutex_unlock(&shared->m_mutex);
 }
-#endif
\ No newline at end of file
+#endif