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Asked: 2026-05-21T10:08:00+00:00

Is there any way to use MySQL UNION in Rails 3?

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Is there any way to use MySQL UNION in Rails 3?

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  1. Editorial Team

    I think the only way you’re going to get this to work by directly executing the query.

    ActiveRecord::Base.connection.execute("SELECT REPEAT('a',1) UNION SELECT REPEAT('b',10)")

    This returns an ActiveRecord resultset. If you want the results wrapped in a model do something like this:

    MyModel.find_by_sql("...")
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