From c5be74ca4e2f5f26b00bd6f02c98f43df6b8407b Mon Sep 17 00:00:00 2001
From: jinhua luo <home_king@163.com>
Date: Thu, 27 Jun 2019 13:16:35 +0800
Subject: [PATCH] send simple query if no args

no need to parse and sanitize the sql string when no args.
---
 query.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/query.go b/query.go
index 14df853f..5c6cbf7f 100644
--- a/query.go
+++ b/query.go
@@ -522,6 +522,10 @@ func (c *Conn) readUntilRowDescription() ([]FieldDescription, error) {
 }
 
 func (c *Conn) sanitizeAndSendSimpleQuery(sql string, args ...interface{}) (err error) {
+	if len(args) == 0 {
+		return c.sendSimpleQuery(sql)
+	}
+
 	if c.RuntimeParams["standard_conforming_strings"] != "on" {
 		return errors.New("simple protocol queries must be run with standard_conforming_strings=on")
 	}