BigW Consortium Gitlab

20170317203554_index_routes_path_for_like.rb 823 Bytes
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# See http://doc.gitlab.com/ce/development/migration_style_guide.html
# for more information on how to write migrations for GitLab.

class IndexRoutesPathForLike < ActiveRecord::Migration
  include Gitlab::Database::MigrationHelpers

  # Set this constant to true if this migration requires downtime.
  DOWNTIME = false

  INDEX_NAME = 'index_routes_on_path_text_pattern_ops'

  disable_ddl_transaction!

  def up
    return unless Gitlab::Database.postgresql?

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    unless index_exists?(:routes, :path, name: INDEX_NAME)
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      execute("CREATE INDEX CONCURRENTLY #{INDEX_NAME} ON routes (path varchar_pattern_ops);")
    end
  end

  def down
    return unless Gitlab::Database.postgresql?
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    return unless index_exists?(:routes, :path, name: INDEX_NAME)
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    remove_concurrent_index_by_name(:routes, INDEX_NAME)
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  end
end