def __init__(self, left, right):
super().__init__()
self.left = left
self.right = right
if self.left.row_count != self.right.row_count:
raise ValueError(
f'Merging datasets with unequal row counts ({self.left.row_count} != {self.right.row_count})'
)
self._row_count = self.left.row_count
overlap = set(left) & set(right)
if overlap:
raise NameError(f'Duplicate names: {overlap}')
# TODO: for DatasetArray, we might want to just do this?
# self._columns = frozendict({**left._columns, **right._columns})
self._columns = {
**{
name: ColumnProxy(self.left, name, data_type(col))
for name, col in self.left._columns.items()
},
**{
name: ColumnProxy(self.right, name, data_type(col))
for name, col in self.right._columns.items()
}
}
self._ids = frozendict({**left._ids, **right._ids})
self._set_row_count()
def _create_columns(self):
# TODO: for DatasetArray, we might want to just do this?
# self._columns = frozendict({**left._columns, **right._columns})
self._columns = {
**{
name: ColumnProxy(self.left, name, data_type(col))
for name, col in self.left._columns.items()
},
**{
name: ColumnProxy(self.right, name, data_type(col))
for name, col in self.right._columns.items()
}
}