From a228cc13aeabff308d6dfc98a1015865f5393fce Mon Sep 17 00:00:00 2001
From: Magnus Hagander
Date: Mon, 9 Apr 2018 19:02:42 +0200
Subject: Revert "Allow on-line enabling and disabling of data checksums"

This reverts the backend sides of commit 1fde38beaa0c3e66c340efc7cc0dc272d6254bb0.
I have, at least for now, left the pg_verify_checksums tool in place, as
this tool can be very valuable without the rest of the patch as well,
and since it's a read-only tool that only runs when the cluster is down
it should be a lot safer.
---
 src/bin/pg_upgrade/controldata.c | 9 ---------
 1 file changed, 9 deletions(-)

(limited to 'src/bin/pg_upgrade/controldata.c')

diff --git a/src/bin/pg_upgrade/controldata.c b/src/bin/pg_upgrade/controldata.c
index 4bb2b7e6ec3..0fe98a550e1 100644
--- a/src/bin/pg_upgrade/controldata.c
+++ b/src/bin/pg_upgrade/controldata.c
@@ -590,15 +590,6 @@ check_control_data(ControlData *oldctrl,
 	 * check_for_isn_and_int8_passing_mismatch().
 	 */
 
-	/*
-	 * If checksums have been turned on in the old cluster, but the
-	 * checksumhelper have yet to finish, then disallow upgrading. The user
-	 * should either let the process finish, or turn off checksums, before
-	 * retrying.
-	 */
-	if (oldctrl->data_checksum_version == 2)
-		pg_fatal("transition to data checksums not completed in old cluster\n");
-
 	/*
 	 * We might eventually allow upgrades from checksum to no-checksum
 	 * clusters.
-- 
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