Migration PopulateCanPushFromDeployKeysProjects failing on MySQL environments
### Summary
The migration `PopulateCanPushFromDeployKeysProjects`, which was included as of public release v10.3.4 is failing to run successfully in MySQL Environments.
https://gitlab.com/gitlab-org/gitlab-ce/blob/v10.3.4/db/migrate/20171215113714_populate_can_push_from_deploy_keys_projects.rb
### Steps to reproduce
From an installation of Gitlab CE v10.3.3, attempt to upgrade to v10.3.4 — upon the DB migration stage, an error is thrown during the migration attempt indicating the migration failed to complete
### What is the current *bug* behavior?
The migration is not completed successfully in MySQL Environments
### What is the expected *correct* behavior?
The migration is expected to complete successfully in MySQL Environments
### Relevant logs and/or screenshots
```
bundle exec rake db:migrate RAILS_ENV=production
== 20171215113714 PopulateCanPushFromDeployKeysProjects: migrating ============
-- execute(" UPDATE deploy_keys_projects\n SET can_push = keys.can_push\n FROM keys\n WHERE deploy_key_id = keys.id\n AND deploy_keys_projects.id BETWEEN 1 AND 50\n")
rake aborted!
StandardError: An error has occurred, all later migrations canceled:
Mysql2::Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM keys
WHERE deploy_key_id = keys.id
AND deploy_keys_projects' at line 3: UPDATE deploy_keys_projects
SET can_push = keys.can_push
FROM keys
WHERE deploy_key_id = keys.id
AND deploy_keys_projects.id BETWEEN 1 AND 50
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/mysql2-0.4.5/lib/mysql2/client.rb:120:in `_query'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/mysql2-0.4.5/lib/mysql2/client.rb:120:in `block in query'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/mysql2-0.4.5/lib/mysql2/client.rb:119:in `handle_interrupt'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/mysql2-0.4.5/lib/mysql2/client.rb:119:in `query'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/peek-mysql2-1.1.0/lib/peek/views/mysql2.rb:14:in `query_with_timing'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/activerecord-4.2.10/lib/active_record/connection_adapters/abstract_mysql_adapter.rb:317:in `block in execute'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/activerecord-4.2.10/lib/active_record/connection_adapters/abstract_adapter.rb:484:in `block in log'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/activesupport-4.2.10/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/activerecord-4.2.10/lib/active_record/connection_adapters/abstract_adapter.rb:478:in `log'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/activerecord-4.2.10/lib/active_record/connection_adapters/abstract_mysql_adapter.rb:317:in `execute'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/activerecord-4.2.10/lib/active_record/connection_adapters/mysql2_adapter.rb:217:in `execute'
/home/git/gitlab/config/initializers/connection_fix.rb:20:in `execute'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/activerecord-4.2.10/lib/active_record/migration.rb:665:in `block in method_missing'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/activerecord-4.2.10/lib/active_record/migration.rb:634:in `block in say_with_time'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/activerecord-4.2.10/lib/active_record/migration.rb:634:in `say_with_time'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/activerecord-4.2.10/lib/active_record/migration.rb:654:in `method_missing'
/home/git/gitlab/db/migrate/20171215113714_populate_can_push_from_deploy_keys_projects.rb:21:in `block in up'
/home/git/gitlab/app/models/concerns/each_batch.rb:75:in `block in each_batch'
/home/git/gitlab/app/models/concerns/each_batch.rb:56:in `step'
/home/git/gitlab/app/models/concerns/each_batch.rb:56:in `each_batch'
/home/git/gitlab/db/migrate/20171215113714_populate_can_push_from_deploy_keys_projects.rb:18:in `up'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/activerecord-4.2.10/lib/active_record/migration.rb:611:in `exec_migration'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/activerecord-4.2.10/lib/active_record/migration.rb:592:in `block (2 levels) in migrate'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/activerecord-4.2.10/lib/active_record/migration.rb:591:in `block in migrate'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/activerecord-4.2.10/lib/active_record/connection_adapters/abstract/connection_pool.rb:292:in `with_connection'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/activerecord-4.2.10/lib/active_record/migration.rb:590:in `migrate'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/activerecord-4.2.10/lib/active_record/migration.rb:768:in `migrate'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/activerecord-4.2.10/lib/active_record/migration.rb:1023:in `block in execute_migration_in_transaction'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/activerecord-4.2.10/lib/active_record/migration.rb:1071:in `ddl_transaction'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/activerecord-4.2.10/lib/active_record/migration.rb:1022:in `execute_migration_in_transaction'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/activerecord-4.2.10/lib/active_record/migration.rb:984:in `block in migrate'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/activerecord-4.2.10/lib/active_record/migration.rb:980:in `each'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/activerecord-4.2.10/lib/active_record/migration.rb:980:in `migrate'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/activerecord-4.2.10/lib/active_record/migration.rb:823:in `up'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/activerecord-4.2.10/lib/active_record/migration.rb:801:in `migrate'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/activerecord-4.2.10/lib/active_record/tasks/database_tasks.rb:139:in `migrate'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/activerecord-4.2.10/lib/active_record/railties/databases.rake:44:in `block (2 levels) in <top (required)>'
/home/git/gitlab/vendor/bundle/ruby/2.3.0/gems/rake-12.3.0/exe/rake:27:in `<top (required)>'
/usr/local/bin/bundle:22:in `load'
/usr/local/bin/bundle:22:in `<main>'
```
#### Results of GitLab environment info
bundle exec rake gitlab:env:info RAILS_ENV=production
System information
System:
Current User: git
Using RVM: no
Ruby Version: 2.3.6p384
Gem Version: 2.5.2.2
Bundler Version:1.16.0
Rake Version: 12.3.0
Redis Version: 4.0.6
Git Version: 2.14.1
Sidekiq Version:5.0.4
Go Version: go1.8.3 linux/amd64
GitLab information
Version: 10.3.4
Revision: 56dc7222e30
Directory: /home/git/gitlab
DB Adapter: mysql2
GitLab Shell
Version: 5.10.2
### Possible fixes
The MySQL update Syntax does not allow for the "FROM" keyword in an UPDATE statement
- https://www.postgresql.org/docs/current/static/sql-update.html
- https://dev.mysql.com/doc/refman/5.7/en/update.html
issue
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