{ TABLE archive_control row size = 82 number of columns = 4 index size 
              = 118 }
create table archive_control 
  (
    archived_datetime datetime year to minute not null ,
    complete_datetime datetime year to minute not null ,
    layer_name char(64) not null ,
    code integer not null 
  );
revoke all on archive_control from "public";

create unique index archive_u on archive_control 
    (complete_datetime,layer_name,code) using btree ;


