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Age	Commit message (Collapse)	Author
2019-08-27	Removes trailing whitespace to fix linting	Evan Read

2019-08-27	Migrations guide: use atomic steps, when possible	Mayra Cabrera
	Currently, the DB migrations guide says that "you must" use non-blocking operations (such as CREATE INDEX CONCURRENTLY), always. But this does not make sense in cases of empty tables and leads to splitting the work to multiple non-atomic (with disable_ddl_transaction!) DB migrations. To follow KISS principle, to have fewer DB migrations steps, to have them atomic when it's possible and simplify deployment and troubleshooting, the following exceptions were added to the doc: - index creation, - index dropping, - defining an FK, - adding a column with DEFAULT,
2019-08-07	Update Migration Style Guide	Valery Sizov

2019-07-09	Update redirected links to final destination	Marcel Amirault
	Updating redirected links in the development, install, policy raketasks and university dirs. Should now link to final URL to avoid redirect hops
2019-05-23	Add note for index requirement with FK constraint	Shinya Maeda
	Update migration_style_guide.md
2019-04-12	Add information about moving migrations	Gosia Ksionek
	Add to docs paragraph about a way of moving EE migrations to CE if needed
2019-02-18	Remove consecutive blank lines from markdown files	Evan Read
	For the sake of consistency, removes any extraneous consecutive blank lines from the doc suite.
2019-01-08	Make unordered lists conform to styleguide	Evan Read
	- Also makes other minor Markdown fixes that were near the main fixes.
2019-01-04	Add config_options\|variables to BuildMetadata	Kamil Trzciński
	These are data columns that store runtime configuration of build needed to execute it on runner and within pipeline. The definition of this data is that once used, and when no longer needed (due to retry capability) they can be freely removed. They use `jsonb` on PostgreSQL, and `text` on MySQL (due to lacking support for json datatype on old enough version).
2018-12-12	Fix ActiveRecord::Migration deprecations	Yorick Peterse
	Extending from ActiveRecord::Migration is deprecated, but was still used in a bunch of places.
2018-11-20	Merge branch 'improve_migrations_docs' into 'master'	Yorick Peterse
	Documentation: Correct inaccurate phrase related to disable_ddl_transaction mode See merge request gitlab-org/gitlab-ce!21175
2018-11-15	Validate foreign keys being indexed	Kamil Trzciński

2018-08-14	Correct inaccurate phrase related to disable_ddl_transaction mode	Nikolay

2018-08-09	Docs: FK constraints require an index.	Andreas Brandl
	Closes #49789.
2018-03-22	make a little more obvious what operations might need downtime or enhanced ↵	Brett Walker
	migration techniques
2018-03-20	Shortcut concurrent index creation/removal if no effect.	Andreas Brandl
	Index creation does not have an effect if the index is present already. Index removal does not have an affect if the index is not present. This helps to avoid patterns like this in migrations: ``` if index_exists?(...) remove_concurrent_index(...) end ```
2018-01-19	doc: Spelling fixes	Ville Skyttä

2017-11-17	Add computed update docs for update_column_in_batches	Sean McGivern

2017-08-04	Mention schema migrations and patch releases	Yorick Peterse

2017-08-04	Removed commit guidelines for migrations	Yorick Peterse
	At some point we decided this isn't really necessary, so let's get rid of it.
2017-06-13	Add database helpers 'add_timestamps_with_timezone' and ↵	blackst0ne
	'timestamps_with_timezone'
2017-05-02	Add some documentation for the new migration helpers	Bob Van Landuyt

2017-04-12	Prepare for zero downtime migrations	Yorick Peterse
	Starting with GitLab 9.1.0 we will no longer allow downtime migrations unless absolutely necessary. This commit updates the various developer guides and adds code that is necessary to make zero downtime migrations less painful.
2017-04-06	Add remove_concurrent_index to database helper	blackst0ne

2016-11-09	Add more highlighting to Migration Style Guide doc	Robert Speicher
	[ci skip]
2016-10-02	Link to the "What requires downtime?" page from the Migration Style Guide	Nick Thomas
	[ci skip]
2016-09-16	Add support for column limits in add_column_with_default	Drew Blessing

2016-07-20	Added checks for migration downtime	Yorick Peterse
	These new checks can be used to check if migrations require downtime or not (as tagged by their authors). In CI this compares the current branch with master so migrations added by merge requests are automatically verified. To check the migrations added since a Git reference simply run: bundle exec rake gitlab:db:downtime_check[GIT_REF]
2016-06-23	Remove Rubocop skip comment from migration style guide [ci skip]	Drew Blessing

2016-06-16	Update migration_style_guide.md with new details	Drew Blessing

2016-05-30	updtae -> update	Chris Spicer

2016-05-12	Updated migration styleguide for new helpers	Yorick Peterse

2016-02-17	Merge branch 'master' of gitlab.com:gitlab-org/gitlab-ce	Rémy Coutable

2016-02-12	Fix a typo [ci skip]	Prayag Verma
	Remove extra `make`
2015-11-02	Add notice about offline migrations	Kamil Trzciński

2015-05-12	update migration style guide	Valery Sizov

2015-05-11	Small improvements to style guide.	Sytse Sijbrandij

2015-05-11	create migration style guide. Fixes #2305	Job van der Voort