From 6b6ce1e160b85f420373db96b6898e9f32e502b7 Mon Sep 17 00:00:00 2001
From: Pau Freixes <pfreixes@github.com>
Date: Fri, 2 Feb 2024 17:47:38 +0100
Subject: [PATCH] Return ErrBadCon when buffer is in wrong state during
 interpolation

---
 connection.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/connection.go b/connection.go
index 660b2b0e0..9b805c39e 100644
--- a/connection.go
+++ b/connection.go
@@ -209,8 +209,9 @@ func (mc *mysqlConn) interpolateParams(query string, args []driver.Value) (strin
 	buf, err := mc.buf.takeCompleteBuffer()
 	if err != nil {
 		// can not take the buffer. Something must be wrong with the connection
+		// is safe to retry and will help to recycle the TCP. So we can return ErrBadConn here
 		mc.cfg.Logger.Print(err)
-		return "", ErrInvalidConn
+		return "", driver.ErrBadConn
 	}
 	buf = buf[:0]
 	argPos := 0