From 00391ba95d83b7d341d446174fee93a18e0274c7 Mon Sep 17 00:00:00 2001
From: Ian Barwick <ian@2ndquadrant.com>
Date: Thu, 31 Aug 2017 23:12:38 +0900
Subject: [PATCH] README: clarify possible values for 'wal_level'

Per gripe in GitHub #251
---
 README.md | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 4e0db02b..d07f56d7 100644
--- a/README.md
+++ b/README.md
@@ -314,7 +314,13 @@ The following replication settings may need to be adjusted:
     max_wal_senders = 10
 
     # Ensure WAL files contain enough information to enable read-only queries
-    # on the standby
+    # on the standby.
+    #
+    #  PostgreSQL 9.5 and earlier: one of 'hot_standby' or 'logical'
+    #  PostgreSQL 9.6 and later: one of 'replica' or 'logical'
+    #    ('hot_standby' will still be accepted as an alias for 'replica')
+    #
+    # See: https://www.postgresql.org/docs/current/static/runtime-config-wal.html#GUC-WAL-LEVEL
 
     wal_level = 'hot_standby'