From 1e7f405fc5e756ac769dce89e643acaa486ef52e Mon Sep 17 00:00:00 2001
From: Gary Rong <garyrong0905@gmail.com>
Date: Thu, 20 Mar 2025 21:35:26 +0800
Subject: [PATCH] core: truncate chain before the cutoff

---
 core/blockchain.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/core/blockchain.go b/core/blockchain.go
index e89e02232c..b5d8ecb435 100644
--- a/core/blockchain.go
+++ b/core/blockchain.go
@@ -2534,6 +2534,11 @@ func (bc *BlockChain) InsertHeadersBeforeCutoff(headers []*types.Header) (int, e
 	if err := batch.Write(); err != nil {
 		return 0, err
 	}
+	// Truncate the useless chain segment (zero bodies and receipts) in the
+	// ancient store.
+	if _, err := bc.db.TruncateTail(last.Number.Uint64() + 1); err != nil {
+		return 0, err
+	}
 	// Last step update all in-memory markers
 	bc.hc.currentHeader.Store(last)
 	bc.currentSnapBlock.Store(last)