From 4f76c8b27a56d32a7e59131fa812213d2bfb2e1b Mon Sep 17 00:00:00 2001
From: bjyb <1091839467@qq.com>
Date: Sun, 17 Sep 2023 00:28:34 +0800
Subject: [PATCH] Update batch_redo.h

---
 src/include/access/extreme_rto/batch_redo.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/include/access/extreme_rto/batch_redo.h b/src/include/access/extreme_rto/batch_redo.h
index 5d8cbfedc..79c9af60f 100644
--- a/src/include/access/extreme_rto/batch_redo.h
+++ b/src/include/access/extreme_rto/batch_redo.h
@@ -26,6 +26,8 @@
 #ifndef BATCH_REDO_H
 #define BATCH_REDO_H
 
+/*This header file is used for replay after the failure of multi-batch database.*/
+
 #include "c.h"
 #include "storage/buf/block.h"
 #include "storage/smgr/relfilenode.h"
@@ -64,6 +66,7 @@ typedef struct redoitemhashentry {
     XLogRecParseState *tail;
     int redoItemNum;
 } RedoItemHashEntry;
+/*Provide operations for multiple threads*/
 
 extern void PRPrintRedoItemHashTab(HTAB *redoItemHash);
 extern HTAB *PRRedoItemHashInitialize(MemoryContext context);