gitlab-org--gitlab-foss/db/migrate/20180504195842_project_name_lower_index.rb

32 lines
842 B
Ruby

# See http://doc.gitlab.com/ce/development/migration_style_guide.html
# for more information on how to write migrations for GitLab.
class ProjectNameLowerIndex < ActiveRecord::Migration
include Gitlab::Database::MigrationHelpers
# Set this constant to true if this migration requires downtime.
DOWNTIME = false
INDEX_NAME = 'index_projects_on_lower_name'
disable_ddl_transaction!
def up
return unless Gitlab::Database.postgresql?
disable_statement_timeout
execute "CREATE INDEX CONCURRENTLY #{INDEX_NAME} ON projects (LOWER(name))"
end
def down
return unless Gitlab::Database.postgresql?
disable_statement_timeout
if supports_drop_index_concurrently?
execute "DROP INDEX CONCURRENTLY IF EXISTS #{INDEX_NAME}"
else
execute "DROP INDEX IF EXISTS #{INDEX_NAME}"
end
end
end