1 files changed, 7 insertions, 3 deletions
diff --git a/src/third_party/wiredtiger/src/btree/bt_handle.c b/src/third_party/wiredtiger/src/btree/bt_handle.c
index c1c1b7af166..8276692e147 100644
--- a/src/third_party/wiredtiger/src/btree/bt_handle.c
+++ b/src/third_party/wiredtiger/src/btree/bt_handle.c
@@ -853,9 +853,13 @@ __btree_get_last_recno(WT_SESSION_IMPL *session)
         return (0);
     }
 
-    flags = WT_READ_PREV;
-    if (!F_ISSET(session->txn, WT_TXN_HAS_SNAPSHOT))
-        LF_SET(WT_READ_VISIBLE_ALL);
+    /*
+     * The endpoint for append is global; read the last page with global visibility to make sure
+     * that if the end of the tree is truncated we don't start appending in the truncated space
+     * unless the truncation has become globally visible. (Note that this path does not examine the
+     * visibility of individual data items; it only checks whether whole pages are deleted.)
+     */
+    flags = WT_READ_PREV | WT_READ_VISIBLE_ALL;
 
     next_walk = NULL;
     WT_RET(__wt_tree_walk(session, &next_walk, flags));