php - How to fix sub-query in LEFT JOIN in Codeigniter? -

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i tried add in join sub-query:

    $this->db->join('stocks stn', 'stn.stocksidmf =      (select medicalfacilities.medicalfacilitiesiduser              medicalfacilities              medicalfacilities.medicalfacilitiesiduser = stn.stocksidmf , stn.stocksenddate >= unix_timestamp()         order stn.stocksid desc limit 1)', 'left', false);'

but codeigniter spoils query. wrong in query? may somehow replace query?


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