[kudu-CR] [python] - Allow to set projected columns on the python scanner

["David Ribeiro Alves (Code Review)" <ge...@ip-10-146-233-104.ec2.internal>]

Hello Todd Lipcon,

I'd like you to do a code review.  Please visit

    http://gerrit.cloudera.org:8080/2023

to review the following change.

Change subject: [python] - Allow to set projected columns on the python scanner
......................................................................

[python] - Allow to set projected columns on the python scanner

Currently the python scanner can only scan the whole table, which is not
ideal, since Kudu is a column store.

This makes it so that it is possible to set projected columns on the
python scanner.

Change-Id: Ibd9748a00d8659d46263182284b948a27ed4a424
---
M python/kudu/client.pyx
M python/kudu/libkudu_client.pxd
M python/kudu/tests/test_scanner.py
3 files changed, 28 insertions(+), 15 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/23/2023/1
-- 
To view, visit http://gerrit.cloudera.org:8080/2023
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Gerrit-MessageType: newchange
Gerrit-Change-Id: Ibd9748a00d8659d46263182284b948a27ed4a424
Gerrit-PatchSet: 1
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: David Ribeiro Alves <da...@cloudera.com>
Gerrit-Reviewer: Todd Lipcon <to...@apache.org>