int function ( ) { return p1 . recordsOutput ( ) * ii . recordsOutput ( ) ; }
estimates the number of output records in the join . the formula is : r indexjoin p1 , p2 , idx = r p1 r idx concode_field_sep IndexInfo ii concode_elem_sep Plan p1 concode_elem_sep Plan p2 concode_elem_sep String joinfield concode_elem_sep Schema sch concode_field_sep Schema schema concode_elem_sep int blocksAccessed concode_elem_sep int distinctValues concode_elem_sep Scan open