From c2214068c63b5cd52b365e3ebdac3a3ebba89697 Mon Sep 17 00:00:00 2001
From: Andrei Tserakhau <tserakhau@double.cloud>
Date: Wed, 13 Mar 2024 21:51:18 +0300
Subject: [PATCH] Stop after first timeout error

Fixing IPV4 error for dualstack cluster without IPV6 connectivity #139
---
 pgconn.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pgconn.go b/pgconn.go
index 894baa2..8d4f385 100644
--- a/pgconn.go
+++ b/pgconn.go
@@ -188,6 +188,10 @@ func ConnectConfig(octx context.Context, config *Config) (pgConn *PgConn, err er
 			if _, ok := cerr.err.(*NotPreferredError); ok {
 				fallbackConfig = fc
 			}
+			if _, ok := cerr.err.(*errTimeout); ok {
+				// once we reach timeout it's useless to check other fallbacks
+				break
+			}
 		}
 	}