From 2e6f7f15d5934ab67f6ee2cb1f2e7bb435bccb9e Mon Sep 17 00:00:00 2001
From: Hongze Cheng <hzcheng@taosdata.com>
Date: Mon, 21 Mar 2022 07:59:37 +0000
Subject: [PATCH] more TDB

---
 source/libs/tdb/src/db/tdbBtree.c  | 6 ------
 source/libs/tdb/src/page/tdbPage.c | 7 ++++++-
 2 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/source/libs/tdb/src/db/tdbBtree.c b/source/libs/tdb/src/db/tdbBtree.c
index 9e6ea91a4c..5f56b2f1e7 100644
--- a/source/libs/tdb/src/db/tdbBtree.c
+++ b/source/libs/tdb/src/db/tdbBtree.c
@@ -482,12 +482,6 @@ static int tdbBtreeBalanceDeeper(SBTree *pBt, SPage *pRoot, SPage **ppChild) {
   // Copy the root page content to the child page
   tdbPageCopy(pRoot, pChild);
 
-  pChild->nOverflow = pRoot->nOverflow;
-  for (int i = 0; i < pChild->nOverflow; i++) {
-    pChild->apOvfl[i] = pRoot->apOvfl[i];
-    pChild->aiOvfl[i] = pRoot->aiOvfl[i];
-  }
-
   // Reinitialize the root page
   zArg.flags = TDB_BTREE_ROOT;
   zArg.pBt = pBt;
diff --git a/source/libs/tdb/src/page/tdbPage.c b/source/libs/tdb/src/page/tdbPage.c
index 803bf168cf..2f6d4101a5 100644
--- a/source/libs/tdb/src/page/tdbPage.c
+++ b/source/libs/tdb/src/page/tdbPage.c
@@ -226,7 +226,12 @@ void tdbPageCopy(SPage *pFromPage, SPage *pToPage) {
     TDB_PAGE_NFREE_SET(pToPage, nFree - delta);
   }
 
-  // TODO: do we need to copy the overflow part ???
+  // Copy the overflow cells
+  for (int iOvfl = 0; iOvfl < pFromPage->nOverflow; iOvfl++) {
+    pToPage->aiOvfl[iOvfl] = pFromPage->aiOvfl[iOvfl];
+    pToPage->apOvfl[iOvfl] = pFromPage->apOvfl[iOvfl];
+  }
+  pToPage->nOverflow = pFromPage->nOverflow;
 }
 
 static int tdbPageAllocate(SPage *pPage, int szCell, SCell **ppCell) {