* create a new instance, pass configuration information describing the datasource * and the report tables and fields. * * * @param array $datasource Database connection information required :host,user,password,db; optional: port * @param array $tables Tables to use for this report. format is array( 'table_name' => 'alias' ) there must be at least one "fact" table, and
($datasource, $tables, $report)
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