Add example file

Signed-off-by: Patrik Helia <patashelia@gmail.com>

contrib/go-pg/example_test.go

@@ -0,0 +1,35 @@
+// Unless explicitly stated otherwise all files in this repository are licensed
+// under the Apache License Version 2.0.
+// This product includes software developed at Datadog (https://www.datadoghq.com/).
+// Copyright 2016-2020 Datadog, Inc.
+
+package pg
+
+import (
+	"context"
+
+	ddpggo "gopkg.in/DataDog/dd-trace-go.v1/contrib/pg-go/pg_go"
+
+	"github.com/go-pg/pg/v10"
+)
+
+// To trace Cassandra commands, use our query wrapper WrapQuery.
+func Example() {
+	// Initialise a postgres session as usual.
+	conn := pg.Connect(&pg.Options{
+		User:     "postgres",
+		Database: "postgres",
+	})
+
+	// Wrap connection with Hook, which catch
+	Hook(conn)
+
+	// To n is stored result, in this case 1
+	var n int
+
+	// For tracing is required execute query with context.
+	_, err := conn.WithContext(context.Background()).QueryOne(pg.Scan(&n), "SELECT 1")
+	if err != nil {
+		panic(err)
+	}
+}