[ARROW-7363] [Python] Add combine_chunks method to ChunkedArray

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.15.1
• Fix Version/s: 3.0.0
• Component/s: Python
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/23640
• Assignee: Andrew Wieteska
• Reporter: marc abboud
• Created: 10/Dec/19 09:38
• Updated: 11/Jan/23 07:53
• Resolved: 09/Dec/20 08:22

Description

Flatten() doesn't work on ChunkedArray. It returns only the ChunkedArray in a list without flattening anything.

// code placeholder
aa = pa.array([[1],[2]])
bb = pa.chunked_array([aa,aa])
 
bb.flatten()

Out[15]:
[<pyarrow.lib.ChunkedArray object> [ [ [ 1 ], [ 2 ] ], [ [ 1 ], [ 2 ] ] ]]

Expected:
[ <pyarrow.lib.Array object> [ 1, 2 ], <pyarrow.lib.Array object> [ 1, 2 ] ]

 

Issue Links

• is related to: ARROW-602 [C++] Provide iterator access to primitive elements inside a ChunkedArray
• links to: GitHub Pull Request #8657