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class UnionFinder
# rubocop: disable CodeReuse/ActiveRecord
def find_union(segments, klass)
if segments.length > 1
union = Gitlab::SQL::Union.new(segments.map { |s| s.select(:id) })
klass.where("#{klass.table_name}.id IN (#{union.to_sql})")
else
segments.first
end
end
# rubocop: enable CodeReuse/ActiveRecord
end
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