doc: mention pg_upgrade extension script
authorBruce Momjian <bruce@momjian.us>
Mon, 9 Aug 2021 01:05:46 +0000 (21:05 -0400)
committerBruce Momjian <bruce@momjian.us>
Mon, 9 Aug 2021 01:05:46 +0000 (21:05 -0400)
commit9268fc34526427a48bc27b5ac4727c7fb4cddf7a
tree3d270d46d06faa17c768d263b1355c4364b418b6
parentc905e64d42fe0725ab7fe84b70a41b4c381aee07
doc:  mention  pg_upgrade extension script

Since commit e462856a7a, pg_upgrade automatically creates a script to
update extensions, so mention that instead of ALTER EXTENSION.

Backpatch-through: 9.6
doc/src/sgml/ref/pgupgrade.sgml