Add week UDF which performs the same task as weekofyear - Githubissues

ddf-project / DDF

Distributed DataFrame: Productivity = Power x Simplicity For Scientists & Engineers, on any Data Engine

http://ddf.io

Apache License 2.0

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Add week UDF which performs the same task as weekofyear #346

Closed nhanitvn closed 8 years ago

nhanitvn commented 8 years ago

Description and related tickets, documents

Also add weekofmonth UDF and refactor test cases

Reviewers: @hai-adatao

Breaking changes & backward compatible issues

How to test

Describe how this PR is tested. In case manual testing is required, describe how to do so.

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