Remove the limits from the tables in sorted order

[carbonin]

This will prevent us from trying to alter an inherited column in a table like metrics_01 or similar.

Without this change a migration can fail with the following output:

When launching rake db:migrate we get the following error:
-- change_column("metric_rollups_01", "resource_type", :string, {:limit=>nil})
rake aborted!
StandardError: An error has occurred, this and all later migrations canceled:

PG::InvalidTableDefinition: ERROR:  cannot alter inherited column "resource_type"
: ALTER TABLE "metric_rollups_01" ALTER COLUMN "resource_type" TYPE character varying

[miq-bot]

Checked commit carbonin@d5413fd with ruby 2.3.3, rubocop 0.52.1, haml-lint 0.20.0, and yamllint 1.10.0
1 file checked, 0 offenses detected
Everything looks fine. ⭐

[Fryguy]

Wow interesting!

I'm marking this gaprindashvili/yes because even though it's a migration, it's not a new migration...just a bug fix.

[carbonin]

https://bugzilla.redhat.com/show_bug.cgi?id=1558617

[simaishi]

Gaprindashvili backport details:

$ git log -1
commit 73f1f7633ae4ffa726c1fceec92c42465500429a
Author: Jason Frey <fryguy9@gmail.com>
Date:   Fri Mar 16 12:04:36 2018 -0400

    Merge pull request #179 from carbonin/sort_tables_before_removing_limits
    
    Remove the limits from the tables in sorted order
    (cherry picked from commit 565c01f3b9282952bb4e6d38316222dbed5ee77f)
    
    Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1558626