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2019-09-18 14:02:45 +00:00
Evan Read
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Removes trailing whitespace to fix linting
2019-08-27 11:31:43 +00:00
Mayra Cabrera
9d5ea4203c
Migrations guide: use atomic steps, when possible
...
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,
2019-08-27 10:22:12 +00:00
Valery Sizov
19f36a3452
Update Migration Style Guide
2019-08-07 18:02:20 +03:00
Marcel Amirault
347a879909
Update redirected links to final destination
...
Updating redirected links in the development, install, policy
raketasks and university dirs. Should now link to final
URL to avoid redirect hops
2019-07-09 00:20:40 +00:00
Shinya Maeda
ff14b58dc5
Add note for index requirement with FK constraint
...
Update migration_style_guide.md
2019-05-23 12:45:52 +00:00
Gosia Ksionek
fb94014773
Add information about moving migrations
...
Add to docs paragraph about a way of moving EE migrations to CE
if needed
2019-04-12 16:41:59 +00:00
Evan Read
47fb1c5235
Remove consecutive blank lines from markdown files
...
For the sake of consistency, removes any extraneous
consecutive blank lines from the doc suite.
2019-02-18 09:36:13 +00:00
Evan Read
d98560c1f5
Make unordered lists conform to styleguide
...
- Also makes other minor Markdown fixes that were near the main fixes.
2019-01-08 12:21:09 +10:00
Kamil Trzciński
0103d5be96
Add config_options|variables to BuildMetadata
...
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).
2019-01-04 16:38:17 +01:00
Yorick Peterse
40ad7d5d7a
Fix ActiveRecord::Migration deprecations
...
Extending from ActiveRecord::Migration is deprecated, but was still used
in a bunch of places.
2018-12-12 16:38:40 +01:00
Yorick Peterse
3cf5ae3158
Merge branch 'improve_migrations_docs' into 'master'
...
Documentation: Correct inaccurate phrase related to disable_ddl_transaction mode
See merge request gitlab-org/gitlab-ce!21175
2018-11-20 12:18:42 +00:00
Kamil Trzciński
90801a43ca
Validate foreign keys being indexed
2018-11-15 12:51:15 +01:00
Nikolay
918177b749
Correct inaccurate phrase related to disable_ddl_transaction mode
2018-08-14 00:51:27 +00:00
Andreas Brandl
3d2a3e5782
Docs: FK constraints require an index.
...
Closes #49789 .
2018-08-08 23:30:48 +02:00
Brett Walker
7b0e7bcf5d
make a little more obvious what operations might need downtime or enhanced migration techniques
2018-03-22 16:08:21 +00:00
Andreas Brandl
1362d9fe13
Shortcut concurrent index creation/removal if no effect.
...
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
```
2018-03-20 18:44:00 +01:00
Ville Skyttä
0cbbb08e79
doc: Spelling fixes
2018-01-19 12:09:59 +02:00
Sean McGivern
4d367dd400
Add computed update docs for update_column_in_batches
2017-11-17 16:56:50 +00:00
Yorick Peterse
d5cb29434a
Mention schema migrations and patch releases
2017-08-04 13:34:42 +02:00
Yorick Peterse
9d3f27a22d
Removed commit guidelines for migrations
...
At some point we decided this isn't really necessary, so let's get rid
of it.
2017-08-04 13:34:42 +02:00
blackst0ne
bc00806a4e
Add database helpers 'add_timestamps_with_timezone' and 'timestamps_with_timezone'
2017-06-13 22:44:13 +11:00
Bob Van Landuyt
ffc486a585
Add some documentation for the new migration helpers
2017-05-02 14:10:55 +02:00
Yorick Peterse
223d8a3d26
Prepare for zero downtime migrations
...
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.
2017-04-12 18:15:19 +02:00
blackst0ne
9997c58fc0
Add remove_concurrent_index to database helper
2017-04-06 09:53:57 +11:00
Robert Speicher
9a2ad60ffa
Add more highlighting to Migration Style Guide doc
...
[ci skip]
2016-11-09 10:59:15 +00:00
Nick Thomas
267a96f3d4
Link to the "What requires downtime?" page from the Migration Style Guide
...
[ci skip]
2016-10-02 20:36:45 +01:00
Drew Blessing
e000f02bd3
Add support for column limits in add_column_with_default
2016-09-15 21:59:58 -05:00
Yorick Peterse
a8bfe20d0d
Added checks for migration downtime
...
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]
2016-07-20 12:41:56 +02:00
Drew Blessing
8d96bae6db
Remove Rubocop skip comment from migration style guide [ci skip]
2016-06-23 09:01:04 -05:00
Drew Blessing
8033afd817
Update migration_style_guide.md with new details
2016-06-15 21:38:12 +00:00
Chris Spicer
348d16f524
updtae -> update
2016-05-29 22:31:39 -07:00
Yorick Peterse
e8efaca23c
Updated migration styleguide for new helpers
2016-05-12 13:03:55 +02:00
Rémy Coutable
a4ffdf922d
Merge branch 'master' of gitlab.com:gitlab-org/gitlab-ce
2016-02-17 17:33:09 +01:00
Prayag Verma
b877afc371
Fix a typo [ci skip]
...
Remove extra `make`
2016-02-12 19:02:35 +05:30
Kamil Trzciński
35b93f9d22
Add notice about offline migrations
2015-11-02 15:14:34 +00:00
Valery Sizov
34a9aa2e8a
update migration style guide
2015-05-12 14:34:43 +03:00
Sytse Sijbrandij
881e11df1b
Small improvements to style guide.
2015-05-11 14:48:39 +00:00
Job van der Voort
6a6047f80c
create migration style guide. Fixes #2305
2015-05-11 15:09:36 +02:00