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https://issues.apache.org/jira/browse/ARROW-6046?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Francois Saint-Jacques resolved ARROW-6046.
-------------------------------------------
Resolution: Fixed
Issue resolved by pull request 5126
[https://github.com/apache/arrow/pull/5126]
> [C++] Slice RecordBatch of String array with offset 0 returns whole batch
> -------------------------------------------------------------------------
>
> Key: ARROW-6046
> URL: https://issues.apache.org/jira/browse/ARROW-6046
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++, Python
> Affects Versions: 0.14.1
> Reporter: Sascha Hofmann
> Assignee: Wes McKinney
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.15.0
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> We are seeing a very similar bug as in ARROW-809, just for a RecordBatch of
> strings. A slice of a RecordBatch with a string column and offset =0 returns
> the whole batch instead.
>
> {code:java}
> import pandas as pd
> import pyarrow as pa
> df = pd.DataFrame({ 'b': ['test' for x in range(1000_000)]})
> tbl = pa.Table.from_pandas(df)
> batch = tbl.to_batches()[0]
> batch.slice(0,2).serialize().size
> # 4000232
> batch.slice(1,2).serialize().size
> # 240
> {code}
>
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