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Posted to jira@arrow.apache.org by "Micah Kornfield (Jira)" <ji...@apache.org> on 2020/06/26 16:38:00 UTC
[jira] [Commented] (ARROW-7731) [C++][Parquet] Support
LargeListArray
[ https://issues.apache.org/jira/browse/ARROW-7731?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17146472#comment-17146472 ]
Micah Kornfield commented on ARROW-7731:
----------------------------------------
Writing should be supported now (as of 0.16.0) please update the bug of you are still seeing issues. Reading isn't.
> [C++][Parquet] Support LargeListArray
> -------------------------------------
>
> Key: ARROW-7731
> URL: https://issues.apache.org/jira/browse/ARROW-7731
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: marc abboud
> Priority: Major
> Labels: parquet
> Fix For: 2.0.0
>
>
> For now it's not possible to write a pyarrow.Table containing a LargeListArray in parquet. The lines
> {code:java}
> from pyarrow import parquet
> import pyarrow as pa
> indices = [1, 2, 3]
> indptr = [0, 1, 2, 3]
> q = pa.lib.LargeListArray.from_arrays(indptr, indices)
> table = pa.Table.from_arrays([q], names=['no'])
> parquet.write_table(table, '/test'){code}
> yields the error
> {code:java}
> ArrowNotImplementedError: Unhandled type for Arrow to Parquet schema conversion: large_list<item: int64>
> {code}
>
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