masto-fe/db/post_migrate/20220307083603_optimize_null_index_conversations_uri.rb
Eugen Rochko 75e33fd08f
Fix null values being included in some indexes (#17711)
* 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>
2022-03-12 08:12:57 +01:00

17 lines
488 B
Ruby

# frozen_string_literal: true
require Rails.root.join('lib', 'mastodon', 'migration_helpers')
class OptimizeNullIndexConversationsUri < ActiveRecord::Migration[5.2]
include Mastodon::MigrationHelpers
disable_ddl_transaction!
def up
update_index :conversations, 'index_conversations_on_uri', :uri, unique: true, where: 'uri IS NOT NULL', opclass: :text_pattern_ops
end
def down
update_index :conversations, 'index_conversations_on_uri', :uri, unique: true
end
end