lexrf commented on issue #4356: Timestamp from Kylin become 1970/01/01... URL: https://github.com/apache/incubator-superset/issues/4356#issuecomment-363760133 I debugged the code and found the problem happens in viz.py 114-122 if DTTM_ALIAS in df.columns: if timestamp_format in ('epoch_s', 'epoch_ms'): df[DTTM_ALIAS] = pd.to_datetime(df[DTTM_ALIAS], utc=False) else: df[DTTM_ALIAS] = pd.to_datetime( df[DTTM_ALIAS], utc=False, format=timestamp_format) if self.datasource.offset: df[DTTM_ALIAS] += timedelta(hours=self.datasource.offset) it use pandas.to_datetime to convert the timestamp value to datetime format. However, by default the to_datetime function us ns as original time unit. And the query result is in second. This make time value * 10e-9 after convert. Surperset should use some code to determine the timestamp unit.
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