MySQL UNION statement and Query Builder?

Is there any way to write a MySQL UNION statement with Query Builder?  I have reviewed the documentation and cannot find the answer.

PHP Code:

$this->db->query(); 


What did you Try? What did you Get? What did you Expect?

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Since v4.2.0 you can use UNION with Query Builder.
See https://codeigniter4.github.io/CodeIgnit...lder-union

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