From 1591f058c63a89c56e535a86e8dbc6ab9058da72 Mon Sep 17 00:00:00 2001
From: anastasia <lubennikovaav@gmail.com>
Date: Wed, 5 May 2021 16:38:32 +0300
Subject: [PATCH] implement Debug for Lsn type

---
 zenith_utils/src/lsn.rs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/zenith_utils/src/lsn.rs b/zenith_utils/src/lsn.rs
index 42cb6c46c3..38dab9a15e 100644
--- a/zenith_utils/src/lsn.rs
+++ b/zenith_utils/src/lsn.rs
@@ -10,7 +10,7 @@ use std::sync::atomic::{AtomicU64, Ordering};
 pub const XLOG_BLCKSZ: u32 = 8192;
 
 /// A Postgres LSN (Log Sequence Number), also known as an XLogRecPtr
-#[derive(Debug, Clone, Copy, Eq, Ord, PartialEq, PartialOrd)]
+#[derive(Clone, Copy, Eq, Ord, PartialEq, PartialOrd)]
 pub struct Lsn(pub u64);
 
 /// We tried to parse an LSN from a string, but failed
@@ -122,6 +122,12 @@ impl fmt::Display for Lsn {
     }
 }
 
+impl fmt::Debug for Lsn {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "{:X}/{:X}", self.0 >> 32, self.0 & 0xffffffff)
+    }
+}
+
 impl Add<u64> for Lsn {
     type Output = Lsn;