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metu.life/db/migrate/20170322162804_add_search_i...

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class AddSearchIndexToTags < ActiveRecord::Migration[5.0]
def up
execute 'CREATE INDEX hashtag_search_index ON tags USING gin(to_tsvector(\'simple\', tags.name));'
end
def down
remove_index :tags, name: :hashtag_search_index
end
end