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-rw-r--r--contrib/pg_upgrade/controldata.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/contrib/pg_upgrade/controldata.c b/contrib/pg_upgrade/controldata.c
index 41a8c694e7a..e9376e207f4 100644
--- a/contrib/pg_upgrade/controldata.c
+++ b/contrib/pg_upgrade/controldata.c
@@ -621,6 +621,7 @@ check_control_data(ControlData *oldctrl,
"options.\n");
}
+ /* We might eventually allow upgrades from checksum to no-checksum clusters. */
if (oldctrl->data_checksums != newctrl->data_checksums)
{
pg_log(PG_FATAL,