From 8fd1912537996bfaae5bc235267be4d7e3345011 Mon Sep 17 00:00:00 2001
From: "Peter J. Holzer" <hjp@hjp.at>
Date: Fri, 7 May 2021 19:34:05 +0200
Subject: [PATCH] Add Go/PostgreSQL version

---
 Results        |  6 ++++++
 dcb_go_psql.go | 29 +++++++++++++++++++++++++++++
 2 files changed, 35 insertions(+)
 create mode 100644 dcb_go_psql.go

diff --git a/Results b/Results
index 99f3d8a..b935632 100644
--- a/Results
+++ b/Results
@@ -33,3 +33,9 @@ rorschach:~database_connect_bench 0:14 :-) 1099% time ./dcb_perl_psql
 0.00254458002746105 session 2
 ./dcb_perl_psql  0.05s user 0.01s system 93% cpu 0.068 total
 
+trintignant:~/wrk/database_connect_bench 19:29 :-) 1077% time ./dcb_go_psql
+2021-05-07 19:32:40.307679 +0200 CEST
+0.017314667 connect
+0.0178164 session
+./dcb_go_psql  0.01s user 0.01s system 52% cpu 0.044 total
+
diff --git a/dcb_go_psql.go b/dcb_go_psql.go
new file mode 100644
index 0000000..27ca26c
--- /dev/null
+++ b/dcb_go_psql.go
@@ -0,0 +1,29 @@
+package main
+
+import (
+	"time"
+	"fmt"
+	"log"
+	"database/sql"
+
+	_ "github.com/lib/pq"
+)
+
+func main() {
+	t0 := time.Now()
+	db, err := sql.Open("postgres", "host=/run/postgresql")
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	tx, _ := db.Begin()
+	d1 := time.Since(t0)
+	row := tx.QueryRow("select current_timestamp")
+	var db_ts time.Time
+	row.Scan(&db_ts)
+	fmt.Println(db_ts)
+	db.Close()
+	d2 := time.Since(t0)
+	fmt.Println(d1.Seconds(), "connect")
+	fmt.Println(d2.Seconds(), "session")
+}