docs: improve pg_upgrade standby instructions
authorBruce Momjian
Wed, 13 Sep 2017 13:11:28 +0000 (09:11 -0400)
committerBruce Momjian
Wed, 13 Sep 2017 13:11:28 +0000 (09:11 -0400)
commit213409c6a3ed9d8976985b76f51822c32a710691
tree0f6d6909669cb68bce70f6ac77fb5b4e5aa473c3
parent5d2e18d6ec3bdc042a37b1a9e577679e4b829bea
docs:  improve pg_upgrade standby instructions

This makes it clear that pg_upgrade standby upgrade instructions should
only be used in link mode, adds examples, and explains how rsync works
with links.

Reported-by: Andreas Joseph Krogh
Discussion: https://postgr.es/m/VisenaEmail.6c.c0e592c5af4ef0a2.15e785dcb61@tc7-visena

Backpatch-through: 9.5
doc/src/sgml/ref/pgupgrade.sgml