[jira] [Created] (ARROW-7800) [Python] Expose GetRecordBatchReader API in PyArrow

[Rollo Konig-brock (Jira)]

Rollo Konig-brock created ARROW-7800:
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             Summary: [Python] Expose GetRecordBatchReader API in PyArrow
                 Key: ARROW-7800
                 URL: https://issues.apache.org/jira/browse/ARROW-7800
             Project: Apache Arrow
          Issue Type: Bug
          Components: Python
            Reporter: Rollo Konig-brock
             Fix For: 1.0.0


The GetRecordBatchReader API is really useful for streaming ParquetFiles with 
lots of RLE.

I propose exposing this API in PyArrow in the following manner:

{code}
file_ = ParquetFile('file/path.parquet', batch_size=100)

for batch in file_.get_batches():
     pass
{code}

(If anyone has any better ideas hit me up, I'm not 100% sold on exposing it 
this way.)



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