Heroku Postgres Upgrade ref: http://qiita.com/shu_0115/items/3242b30954251c5803c4

file0.txt

heroku pg:info

file1.txt

heroku addons:add heroku-postgresql:standard-yanari

file10.txt

heroku pg:info
----------
=== HEROKU_POSTGRESQL_COPPER_URL (DATABASE_URL)
Plan:        Standard Yanari
Status:      Available
Data Size:   6.4 MB
Tables:      0
PG Version:  9.3.2
Connections: 3
Fork/Follow: Temporarily Unavailable
Rollback:    Temporarily Unavailable
Created:     2014-01-15 05:40 UTC
Maintenance: not required

=== HEROKU_POSTGRESQL_CRIMSON_URL
Plan:        Hobby-dev
Status:      available
Connections: 2
PG Version:  9.3.2
Created:     2014-01-08 05:26 UTC
Data Size:   6.7 MB
Tables:      5
Rows:        0/10000 (In compliance)
Fork/Follow: Unsupported
Rollback:    Unsupported
----------

file11.txt

heroku addons:remove HEROKU_POSTGRESQL_CRIMSON_URL

file2.txt

heroku pg:wait
----------
Waiting for database HEROKU_POSTGRESQL_COPPER_URL... available
----------

file3.txt

heroku maintenance:on

file4.txt

heroku ps:scale worker=0

file5.txt

heroku pgbackups:capture --expire

file6.txt

heroku pgbackups:restore HEROKU_POSTGRESQL_COPPER_URL

file7.txt

heroku pg:promote HEROKU_POSTGRESQL_COPPER_URL

file8.txt

heroku maintenance:off

file9.txt

heroku ps:scale worker=1