From 74ea479b0ca6b4fa850ac4ebf0ed36cd481c8d6e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?PLATEL=20K=C3=A9vin?= <kevin.platel@schibsted.com>
Date: Tue, 5 Feb 2019 11:01:22 +0100
Subject: [PATCH] Close issue #481 : Give access to the registered driver
 instance

Some library use a driver to wrap its behavior and give additional
functionality, as the datadog tracing library
("gopkg.in/DataDog/dd-trace-go.v1/contrib/database/sql")

This commit aims to give access to this instance which can't be
correctly initialized to due private fields without default values (the
configuration map inside the driver)
---
 stdlib/sql.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/stdlib/sql.go b/stdlib/sql.go
index b83e527b..ec5933f3 100644
--- a/stdlib/sql.go
+++ b/stdlib/sql.go
@@ -126,6 +126,12 @@ var (
 	fakeTxConns map[*pgx.Conn]*sql.Tx
 )
 
+// GetDefaultDriver return the driver initialize in the init function
+// and used when register pgx driver
+func GetDefaultDriver() *Driver {
+	return pgxDriver
+}
+
 type Driver struct {
 	configMutex sync.Mutex
 	configCount int64