From 97c90bebf4d09a63054e9ff2d93afdaa5af58fdc Mon Sep 17 00:00:00 2001
From: Martin Holst Swende <martin@swende.se>
Date: Tue, 21 Nov 2023 09:03:58 +0100
Subject: [PATCH] Update ethdb/pebble/pebble.go

---
 ethdb/pebble/pebble.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ethdb/pebble/pebble.go b/ethdb/pebble/pebble.go
index e4ace33bb5..d58329c6d6 100644
--- a/ethdb/pebble/pebble.go
+++ b/ethdb/pebble/pebble.go
@@ -609,6 +609,8 @@ func (b *batch) Replay(w ethdb.KeyValueWriter) error {
 
 // pebbleIterator is a wrapper of underlying iterator in storage engine.
 // The purpose of this structure is to implement the missing APIs.
+//
+// The pebble iterator is not thread-safe.
 type pebbleIterator struct {
 	iter     *pebble.Iterator
 	moved    bool