Some more detail: campaign_model->bulk_status
file: code/Winxle::API::CreateCampaign::Model::Campaign 169: my $sth = $self->dbh->prepare(<<"EOQUERY"); 170: WITH last_status AS ( 171: SELECT 172: c.uuid, 173: s.status, 174: s.modified, 175: rank() 176: OVER 177: (PARTITION BY s.campaign ORDER BY s.modified DESC) 178: AS rank 179: FROM 180: winxle.campaign_status s, 181: winxle.campaign c, 182: winxle.merchant m, 183: winxle.usr_to_merchant u2m 184: WHERE 185: c.id = s.campaign 186: AND c.merchant = m.id 187: AND m.id = u2m.merchant 188: and u2m.usr = ? 189: AND c.uuid in ($placeholder) 190: ) 191: SELECT uuid,status,modified FROM last_status WHERE rank = 1 LIMIT 50; 192: EOQUERY
one big SQL query