Propel ORM including MAX in criteria -

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I am writing a question using the operative ORM

of the query form:

Select from some predefined * * where some_table.created_at = (some_table to select MAX (some_table.created_at));

I found this too far: 

  $ c = new criteria (); $ C & gt; (.. 'Max (' auto :: created_at ')') AddSelectColumn;

Does anybody know what to do to avoid writing the Writer SQL? "Text">

Try: 

  $ c = new criteria (); $ C- & gt; Addition (SomeTable :: CREATED_AT, '(some selectable by MAX_table'. CREATED_AT. ')', Criteria :: custom);

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