From 9629e2f26aa5877c86ce8932243dc98a3324cfcc Mon Sep 17 00:00:00 2001
From: Nikita Sivukhin <sivukhin@turso.tech>
Date: Wed, 29 Oct 2025 14:24:56 +0400
Subject: [PATCH] reset move_to_right_state cached state in case of quick
 balancing

---
 core/storage/btree.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/core/storage/btree.rs b/core/storage/btree.rs
index daae63d16..659dc2208 100644
--- a/core/storage/btree.rs
+++ b/core/storage/btree.rs
@@ -2589,6 +2589,9 @@ impl BTreeCursor {
     /// 4. Continue balance from the parent page (inserting the new divider cell may have overflowed the parent)
     #[instrument(skip(self), level = Level::DEBUG)]
     fn balance_quick(&mut self) -> Result<IOResult<()>> {
+        // Since we are going to change the btree structure, let's forget our cached knowledge of the rightmost page.
+        let _ = self.move_to_right_state.1.take();
+
         // Allocate a new leaf page and insert the overflow cell payload in it.
         let new_rightmost_leaf = return_if_io!(self.pager.do_allocate_page(
             PageType::TableLeaf,