Обсуждение: pgsql: doc: clarify major/minor pg_upgrade versions with examples

doc:  clarify major/minor pg_upgrade versions with examples

The previous docs added in PG 10 were not clear enough for someone who
didn't understand the PG 10 version change, so give more specific
examples.

Reported-by: jim@room118solutions.com

Discussion: https://postgr.es/m/20171218213041.25744.8414@wrigleys.postgresql.org

Backpatch-through: 10

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/59ad2463507622a1244740c4b527610f590dc473

Modified Files
--------------
doc/src/sgml/ref/pgupgrade.sgml | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)