From 46dba8c6ff3933495fb527b409934d8f1656bad3 Mon Sep 17 00:00:00 2001
From: Hanh <hanh425@gmail.com>
Date: Thu, 2 Feb 2023 10:11:17 +0800
Subject: [PATCH] Don't prune last hour

---
 src/db.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/db.rs b/src/db.rs
index cfcb174..ddace62 100644
--- a/src/db.rs
+++ b/src/db.rs
@@ -725,7 +725,8 @@ impl DbAdapter {
         const BLOCKS_PER_HOUR: u32 = 60 * 60 / 75;
         const BLOCKS_PER_DAY: u32 = 24 * BLOCKS_PER_HOUR;
         const BLOCKS_PER_MONTH: u32 = 30 * BLOCKS_PER_DAY;
-        for i in 1..=24 {
+        // Keep the last hour
+        for i in 2..=24 {
             // 1 checkpoint per hour
             self.prune_interval(
                 height - i * BLOCKS_PER_HOUR,