DataFrame API does not preserve freq attribute in a DateTimeIndex
Open
bug
core
dataframe
dsl
P3
python
- Dominant language
- Java
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Description
This causes issues like omitting the freq attribute in a reconstructed index.
For example https://github.com/apache/beam/pull/13853#discussion_r568029618
Imported from Jira [BEAM-11757](https://issues.apache.org/jira/browse/BEAM-11757). Original Jira may contain additional context.
Reported by: bhulette.
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