From 4f5ce54724c3eb840763101d79b8719de448466e Mon Sep 17 00:00:00 2001
From: JohnnyThree <whereshallyoube@gmail.com>
Date: Thu, 15 Jul 2021 11:52:18 +0800
Subject: [PATCH] fix when show tables record too much error log "Got unhandled
 packet.."

Signed-off-by: JohnnyThree <whereshallyoube@gmail.com>
---
 go/mysql/conn.go      | 5 +++++
 go/mysql/constants.go | 3 +++
 2 files changed, 8 insertions(+)

diff --git a/go/mysql/conn.go b/go/mysql/conn.go
index 599cbd80f1b..632621b4c6e 100644
--- a/go/mysql/conn.go
+++ b/go/mysql/conn.go
@@ -896,6 +896,11 @@ func (c *Conn) handleNextCommand(handler Handler) bool {
 	case ComResetConnection:
 		c.handleComResetConnection(handler)
 		return true
+	case ComFieldList:
+		c.recycleReadPacket()
+		if !c.writeErrorAndLog(ERUnknownComError, SSNetError, "command handling not implemented yet: %v", data[0]) {
+			return false
+		}
 
 	default:
 		log.Errorf("Got unhandled packet (default) from %s, returning error: %v", c, data)
diff --git a/go/mysql/constants.go b/go/mysql/constants.go
index 68c94d9bff3..2cc0383a9de 100644
--- a/go/mysql/constants.go
+++ b/go/mysql/constants.go
@@ -194,6 +194,9 @@ const (
 	// ComQuery is COM_QUERY.
 	ComQuery = 0x03
 
+	// ComFieldList is COM_Field_List.
+	ComFieldList = 0x04
+
 	// ComPing is COM_PING.
 	ComPing = 0x0e