From 4908c563ccd3fd9347c217f97db06df6f2312c02 Mon Sep 17 00:00:00 2001
From: Haojun Liao <hjliao@taosdata.com>
Date: Fri, 10 Feb 2023 14:35:18 +0800
Subject: [PATCH] ehn(query): dynamic set the initial buffer size for data
 block from disk.

---
 source/dnode/vnode/src/tsdb/tsdbRead.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/source/dnode/vnode/src/tsdb/tsdbRead.c b/source/dnode/vnode/src/tsdb/tsdbRead.c
index 6400e7534b..af3da87b17 100644
--- a/source/dnode/vnode/src/tsdb/tsdbRead.c
+++ b/source/dnode/vnode/src/tsdb/tsdbRead.c
@@ -3837,7 +3837,7 @@ int32_t tsdbReaderOpen(SVnode* pVnode, SQueryTableDataCond* pCond, void* pTableL
 
   int32_t capacity = 0;
   if (pResBlock == NULL) {
-    capacity = 4096;
+    capacity = pVnode->config.tsdbCfg.maxRows;
   } else {
     capacity = pResBlock->info.capacity;
   }