From 18e83173c8c58f9edbc56b6ab45961bf3f133b1c Mon Sep 17 00:00:00 2001
From: kailixu <klxu@taosdata.com>
Date: Tue, 23 May 2023 17:21:45 +0800
Subject: [PATCH] fix: delete index filter for desc query

---
 source/dnode/vnode/src/tsdb/tsdbRead.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/source/dnode/vnode/src/tsdb/tsdbRead.c b/source/dnode/vnode/src/tsdb/tsdbRead.c
index 247bc5d0b2..1263140b1c 100644
--- a/source/dnode/vnode/src/tsdb/tsdbRead.c
+++ b/source/dnode/vnode/src/tsdb/tsdbRead.c
@@ -1767,6 +1767,9 @@ static bool overlapWithDelSkyline(STableBlockScanInfo* pBlockScanInfo, const SDa
       if (p->ts > pBlock->minKey.ts && index > 0) {
         index -= 1;
       } else {  // find the first point that is smaller than the minKey.ts of dataBlock.
+        if (p->version == 0 && p->ts == pBlock->minKey.ts && index > 0) {
+          --index;
+        }
         break;
       }
     }