discourse/db/migrate/20170824172615_add_slug_ind...

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# frozen_string_literal: true
class AddSlugIndexOnTopic < ActiveRecord::Migration[4.2]
def up
execute "CREATE INDEX idxTopicSlug ON topics(slug) WHERE deleted_at IS NULL AND slug IS NOT NULL"
end
def down
execute "DROP INDEX idxTopicSlug"
end
end