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-rw-r--r--CONTRIBUTING.md4
1 files changed, 4 insertions, 0 deletions
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 2f522c1e39a..d94673e82ce 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -336,6 +336,10 @@ request is as follows:
1. If your code creates new files on disk please read the
[shared files guidelines](doc/development/shared_files.md).
1. When writing commit messages please follow [these](http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html) [guidelines](http://chris.beams.io/posts/git-commit/).
+1. If your merge request adds one or more migrations, make sure to execute all
+ migrations on a fresh database before the MR is reviewed. If the review leads
+ to large changes in the MR, do this again once the review is complete.
+1. For more complex migrations, write tests.
The **official merge window** is in the beginning of the month from the 1st to
the 7th day of the month. This is the best time to submit an MR and get