From 3950ab1e52c8d1a83aedbe0518dada8c8f651b3a Mon Sep 17 00:00:00 2001
From: Pere Diaz Bou <pere-altea@hotmail.com>
Date: Mon, 7 Apr 2025 22:16:50 +0200
Subject: [PATCH] account for divider cell size in page size

---
 core/storage/btree.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/core/storage/btree.rs b/core/storage/btree.rs
index c505a3fee..06a7e65fd 100644
--- a/core/storage/btree.rs
+++ b/core/storage/btree.rs
@@ -1642,6 +1642,10 @@ impl BTreeCursor {
                         let size = new_page_sizes.last_mut().unwrap();
                         // 2 to account of pointer
                         *size += 2 + overflow.payload.len() as u16;
+                    if !leaf && i < balance_info.sibling_count - 1 {
+                        // Account for divider cell which is included in this page.
+                        let size = new_page_sizes.last_mut().unwrap();
+                        *size += cell_array.cells[cell_array.cell_count(i)].len() as i64;
                     }
                 }