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Fix null values being included in some indexes (#17711)

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* Fix null values being included in some indexes

* Update lib/mastodon/migration_helpers.rb

Co-authored-by: Claire <claire.github-309c@sitedethib.com>

* Add documentation link to corruption error message

Co-authored-by: Claire <claire.github-309c@sitedethib.com>
This commit is contained in:
Eugen Rochko 2022-03-12 08:12:57 +01:00 • committed by GitHub
parent bc320d6cec
commit 75e33fd08f
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23 changed files with 354 additions and 37 deletions
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15
lib/tasks/db.rake
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@ -17,23 +17,10 @@ namespace :db do
end
end
task :post_migration_hook do
at_exit do
unless %w(C POSIX).include?(ActiveRecord::Base.connection.select_one('SELECT datcollate FROM pg_database WHERE datname = current_database();')['datcollate'])
warn <<~WARNING
Your database collation may be susceptible to index corruption.
(This warning does not indicate that index corruption has occurred, and it can be ignored if you've previously checked for index corruption)
(To learn more, visit: https://docs.joinmastodon.org/admin/troubleshooting/index-corruption/)
WARNING
end
end
end
task :pre_migration_check do
version = ActiveRecord::Base.connection.select_one("SELECT current_setting('server_version_num') AS v")['v'].to_i
abort 'ERROR: This version of Mastodon requires PostgreSQL 9.5 or newer. Please update PostgreSQL before updating Mastodon.' if version < 90_500
abort 'This version of Mastodon requires PostgreSQL 9.5 or newer. Please update PostgreSQL before updating Mastodon' if version < 90_500
end
Rake::Task['db:migrate'].enhance(['db:pre_migration_check'])
Rake::Task['db:migrate'].enhance(['db:post_migration_hook'])
end