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@mekemo_dao(Fujikawa desu)inoverflow, Inc.

postgresで任意のid順にorder by

Posted at

任意のid順にorder by

例えば手元にこのようなidsがあり、このidsの順番でuserを取得したいとき

ids = [2,3,1,10,9]

これでうまくいくかも

users = User.order("COALESCE(array_position(ARRAY[#{ids.join(",")}], id), 0) asc")

たまにこういうこと並び順が必要になること
ありますよね

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