[jira] [Commented] (ARROW-7731) [C++][Parquet] Support LargeListArray

["Micah Kornfield (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ARROW-7731?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17188129#comment-17188129 ] 

Micah Kornfield commented on ARROW-7731:
----------------------------------------

Supporting reading is tacked in ARROW-1644 and its children.

> [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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