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[jira] [Created] (ARROW-2699) [Python] Add pyarrow.Table method that replaces a column with a new supplied column


Wes McKinney created ARROW-2699:
-----------------------------------

             Summary: [Python] Add pyarrow.Table method that replaces a column with a new supplied column
                 Key: ARROW-2699
                 URL: https://issues.apache.org/jira/browse/ARROW-2699
             Project: Apache Arrow
          Issue Type: New Feature
          Components: Python
            Reporter: Wes McKinney
             Fix For: 0.10.0


This method would produce a new table since table objects are immutable. Example:

{code}
new_column = table.column(name).cast(pa.timestamp('ms'))
new_table = table.set_column(name, new_column)
{code}

See discussion in https://github.com/apache/arrow/pull/2129#issuecomment-396423002



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