From 655ae90e5eb43b444156cc0f8feca8b133e48eaf Mon Sep 17 00:00:00 2001
From: Rusty Russell <rusty@rustcorp.com.au>
Date: Thu, 22 Feb 2018 11:59:08 +1030
Subject: [PATCH] wallet: remove obsolete peers.

Fixes: #1029
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 wallet/db.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/wallet/db.c b/wallet/db.c
index 0270ba129..9d09dd8e5 100644
--- a/wallet/db.c
+++ b/wallet/db.c
@@ -196,6 +196,8 @@ char *dbmigrations[] = {
     "DELETE FROM channels WHERE state=1",
     /* Keep track of db ugprades, for debugging */
     "CREATE TABLE db_upgrades (upgrade_from INTEGER, lightning_version TEXT);",
+    /* We used not to clean up peers when their channels were gone. */
+    "DELETE FROM peers WHERE id NOT IN (SELECT peer_id FROM channels);",
     NULL,
 };