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https://issues.apache.org/jira/browse/ARROW-2591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16698286#comment-16698286
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Wes McKinney commented on ARROW-2591:
-------------------------------------
> May I have it fixed?
[~jafournier] for future reference, it isn't ideal in open source projects to
ask volunteers to fix bugs for you in this way. After you report the bug; if it
is deemed a priority by another developer, they may fix it. Otherwise, if they
do not fix it, and you need the fix sooner, we would be glad to accept a pull
request.
> [Python] Segmentation fault when writing empty ListType column to Parquet
> -------------------------------------------------------------------------
>
> Key: ARROW-2591
> URL: https://issues.apache.org/jira/browse/ARROW-2591
> Project: Apache Arrow
> Issue Type: Bug
> Components: Python
> Affects Versions: 0.8.0, 0.9.0
> Reporter: jacques
> Assignee: Krisztian Szucs
> Priority: Major
> Labels: parquet, pull-request-available
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Context Is the following: I am currently dealing with sparse column
> serialization in parquet. In some cases, many lines are empty I can also have
> columns containing only empty lists.
> However I got a segmentation fault when I try to write in parquet thoses
> columns filled only with empty lists.
> Here is a simple code snipet reproduces the segmentation fault I had:
> {noformat}
> In [1]: import pyarrow as pa
> In [2]: import pyarrow.parquet as pq
> In [3]: pa_ar = pa.array([[],[]],pa.list_(pa.int32()))
> In [4]: table = pa.Table.from_arrays([pa_ar],["test"])
> In [5]: pq.write_table(
> ...: table=table,
> ...: where="test.parquet",
> ...: compression="snappy",
> ...: flavor="spark"
> ...: )
> Segmentation fault
> {noformat}
> May I have it fixed?
> Best
> Jacques
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