From b596fa34557d81a3ded6b1533964d47649afd2f8 Mon Sep 17 00:00:00 2001
From: Jack Christensen <jack@jackchristensen.com>
Date: Sat, 30 Apr 2016 13:32:19 -0500
Subject: [PATCH] Avoid allocation for WriteBuf on query

---
 conn.go     | 1 +
 messages.go | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/conn.go b/conn.go
index 6faed577..a8c6cbc5 100644
--- a/conn.go
+++ b/conn.go
@@ -47,6 +47,7 @@ type Conn struct {
 	lastActivityTime   time.Time     // the last time the connection was used
 	reader             *bufio.Reader // buffered reader to improve read performance
 	wbuf               [1024]byte
+	writeBuf           WriteBuf
 	Pid                int32             // backend pid
 	SecretKey          int32             // key to use to send a cancel query message to the server
 	RuntimeParams      map[string]string // parameters that have been reported by the server
diff --git a/messages.go b/messages.go
index 7cc244c8..1fbd9cbc 100644
--- a/messages.go
+++ b/messages.go
@@ -91,7 +91,8 @@ func (self PgError) Error() string {
 
 func newWriteBuf(c *Conn, t byte) *WriteBuf {
 	buf := append(c.wbuf[0:0], t, 0, 0, 0, 0)
-	return &WriteBuf{buf: buf, sizeIdx: 1, conn: c}
+	c.writeBuf = WriteBuf{buf: buf, sizeIdx: 1, conn: c}
+	return &c.writeBuf
 }
 
 // WrifeBuf is used build messages to send to the PostgreSQL server. It is used