betodealmeida commented on a change in pull request #4890: [bugfix] temporal
columns with expression fail
URL:
https://github.com/apache/incubator-superset/pull/4890#discussion_r184555680
##########
File path: superset/connectors/sqla/models.py
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@@ -130,8 +131,9 @@ def get_timestamp_expression(self, time_grain):
elif pdf == 'epoch_ms':
expr = db_spec.epoch_ms_to_dttm().format(col=expr)
grain = self.table.database.grains_dict().get(time_grain)
- literal = grain.function if grain else '{col}'
- literal = expr.format(col=expr)
+ if grain:
+ literal = grain.function
+ literal = expr.format(col=expr)
Review comment:
Yeah, I think this should be
```python
literal = literal.format(col=expr)
```
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