| 1520 | |
| 1521 | |
| 1522 | class ToTimestamp(Elemwise): |
| 1523 | _projection_passthrough = True |
| 1524 | _parameters = ["frame", "freq", "how"] |
| 1525 | _defaults = {"freq": None, "how": "start"} |
| 1526 | operation = M.to_timestamp |
| 1527 | _filter_passthrough = True |
| 1528 | _preserves_partitioning_information = True |
| 1529 | |
| 1530 | def _divisions(self): |
| 1531 | return tuple( |
| 1532 | pd.Index(self.frame.divisions).to_timestamp(freq=self.freq, how=self.how) |
| 1533 | ) |
| 1534 | |
| 1535 | |
| 1536 | class CombineSeries(Elemwise): |