Test build #80795 has finished for PR 18974 at commit 3f5cf45.

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Test build #80797 has finished for PR 18974 at commit c336d0f.

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• This patch merges cleanly.
• This patch adds no public classes.

Test build #80799 has finished for PR 18974 at commit 440331a.

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ping @srowen @ueshin @BryanCutler

Thanks for this @kiszk. I was thinking we would need to do an upgrade for DecimalType support. I'm going to help out with that on the Arrow side, but it still might not be ready until 1 or 2 more releases. I'm not sure what the general Spark stance is on updating dependencies like Arrow, but I can say that I did test 0.6 myself and did not see anything that might cause issues. Maybe someone else can share the policies on upgrading?

According to #18459, I'm pining @holdenk and @cloud-fan , too.

I agree with the usage of the latest one in each release.

It would be good to periodically update a library if the library does not introduce drastic change (e.g. changing APIs) for ensuring stability for a longer period.
What do you think?

I'm ok with it if arrow 0.6.0 doesn't introduce new dependencies.

Do we need to upgrade pyarrow in Jenkins environment?
LGTM except for it.

as with @Rushing my primary concern with the upgrade here is the Jenkins interaction of when we eventually need to upgrade th Python side as well. It seems like we might not need to yet for 0.6.0 but I'm hesitant about having mixed versions since I believe that is explicitly not an arrow guarantee in general.

Thank you for comments. I understand issues regarding Jenkins interaction in the Python side. I close this PR for now since the Python side is not ready for upgrading Arrow.

Hi, All.
Two more Arrow releases seem to be out. How about the Python side? Can we catch up some?

• 0.7.1 (1 October 2017)
• 0.7.0 (17 September 2017)