+ { columns => [ 'hardware_typenum' ],
+ table => 'hardware_type',
+ references => [ 'typenum' ],
+ },
+ ],
+ },
+
+ 'sector_coverage' => {
+ 'columns' => [
+ 'coveragenum', 'serial', '', '', '', '',
+ 'sectornum', 'int', '', '', '', '',
+ 'db_loss', 'int', '', '', '', '',
+ 'geometry', 'text', 'NULL', '', '', '',
+ ],
+ 'primary_key' => 'coveragenum',
+ 'unique' => [],
+ 'index' => [],
+ 'foreign_keys' => [
+ { columns => [ 'sectornum' ],
+ table => 'tower_sector'
+ },