discourse/db/migrate/20191101001705_add_banner_i...

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# frozen_string_literal: true
class AddBannerIndexToTopics < ActiveRecord::Migration[6.0]
def change
# this speeds up the process for finding banners on the site
add_index :topics,
[:id],
name: "index_topics_on_id_filtered_banner",
where: "archetype = 'banner' AND deleted_at IS NULL",
unique: true
end
end