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-rwxr-xr-xsrc/bin/pg_dump/pg_upgrade3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/bin/pg_dump/pg_upgrade b/src/bin/pg_dump/pg_upgrade
index e566a912ba6..6d54f84f558 100755
--- a/src/bin/pg_dump/pg_upgrade
+++ b/src/bin/pg_dump/pg_upgrade
@@ -2,6 +2,9 @@
#
# pg_upgrade: update a database without needing a full dump/reload cycle
# CAUTION: read the manual page before trying to use this!
+echo "pg_upgrade is disabled in this release because the on-disk structure" 1>&2
+echo "of the tables has changed compared to previous releases." 1>&2
+exit 1
trap "rm -f /tmp/$$" 0 1 2 3 15