From 9c0031114ed32e1103a49bd035c1bf8aed06c49c Mon Sep 17 00:00:00 2001
From: guo-shaoge <shaoge1994@163.com>
Date: Mon, 19 Feb 2024 16:29:23 +0800
Subject: [PATCH] fix reset tracker

Signed-off-by: guo-shaoge <shaoge1994@163.com>
---
 pkg/executor/cte.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/pkg/executor/cte.go b/pkg/executor/cte.go
index 48d143a4f87b7..4c30243268821 100644
--- a/pkg/executor/cte.go
+++ b/pkg/executor/cte.go
@@ -266,7 +266,10 @@ func (p *cteProducer) closeProducer() (firstErr error) {
 			firstErr = setFirstErr(firstErr, err, "deref iterOutTbl err")
 		}
 	}
-	p.resetTracker()
+	// Reset to nil instead of calling Detach(),
+	// because ExplainExec still needs tracker to get mem usage info.
+	p.memTracker = nil
+	p.diskTracker = nil
 	p.closed = true
 	return
 }