selectContainerExcerpt :: Selector -- ^ @'Container' -> 'Excerpt'@
selectContainerExcerpt = selectJoin 'makeContainerExcerpt
  [ selectAssetContainerExcerpt
  , joinOn "slot_asset.asset = asset.id"
    selectAssetRow -- XXX volumes match?
  ]
selectContainerExcerpt :: Selector
selectContainerExcerpt = selectJoin 'makeContainerExcerpt
  [ selectAssetContainerExcerpt
  , joinOn "slot_asset.asset = asset.id"
    selectAssetRow -- XXX volumes match?
  ]
selectContainerExcerpt = selectJoin 'makeContainerExcerpt
  [ selectAssetContainerExcerpt
  , joinOn "slot_asset.asset = asset.id"
    selectAssetRow -- XXX volumes match?
  ]