From 6da314df7c99254bb3d1675b3552ba1860621ea2 Mon Sep 17 00:00:00 2001
From: Hongze Cheng <hzcheng@taosdata.com>
Date: Fri, 11 Mar 2022 08:14:54 +0000
Subject: [PATCH] more TDB

---
 source/libs/tdb/src/inc/tdbPCache.h | 3 ++-
 source/libs/tdb/src/inc/tdbPage.h   | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/source/libs/tdb/src/inc/tdbPCache.h b/source/libs/tdb/src/inc/tdbPCache.h
index fe5131e58b..ff4f1acbb6 100644
--- a/source/libs/tdb/src/inc/tdbPCache.h
+++ b/source/libs/tdb/src/inc/tdbPCache.h
@@ -31,7 +31,8 @@ extern "C" {
   SPage   *pLruNext;    \
   SPage   *pLruPrev;    \
   SPage   *pDirtyNext;  \
-  SPager  *pPager;
+  SPager  *pPager;      \
+  SPgid    pgid;
 
 int    tdbPCacheOpen(int pageSize, int cacheSize, SPCache **ppCache);
 int    tdbPCacheClose(SPCache *pCache);
diff --git a/source/libs/tdb/src/inc/tdbPage.h b/source/libs/tdb/src/inc/tdbPage.h
index f4738dbfad..322f2448bb 100644
--- a/source/libs/tdb/src/inc/tdbPage.h
+++ b/source/libs/tdb/src/inc/tdbPage.h
@@ -22,6 +22,7 @@ extern "C" {
 
 typedef u8 SCell;
 
+// Page header
 typedef struct __attribute__((__packed__)) {
   u16 flags;
   u16 nCells;
@@ -30,6 +31,7 @@ typedef struct __attribute__((__packed__)) {
   u16 nFree;
 } SPageHdr;
 
+// Large page header (pageSize >= 65536 (64K))
 typedef struct __attribute__((__packed__)) {
   u16 flags;
   u8  nCells[3];
@@ -48,7 +50,6 @@ struct SPage {
   u8                 szOffset;
   pthread_spinlock_t lock;
   // Fields below used by pager and am
-  SPgid     pgid;
   SPageHdr *pPageHdr;
   SPageFtr *pPageFtr;
   u8       *aCellIdx;