[VOTE] Add a "Feature" enum to Schema.fbs

2020-06-27 Thread Micah Kornfield
Hi, As discussed on the mailing list [1] I would like to add a feature enum to enhance our ability to evolve Arrow in a forward compatible manner and allow clients and servers to negotiate which features are supported before finalizing the features used. The PR adds a new enum and a field on sche

Re: Deep copy for ArrayData,Array, Table in C++ API

2020-06-27 Thread Wes McKinney
Efficiently assembling a selection from multiple arrays will require some care -- our current implementation of Take involving ChunkedArray arguments is not too efficient, and they will need some rewriting for efficiency at some point in the future. Using some combination of Concatenate and Take ma

Help adding forward compatibility checks for Decimal::bitWidth format field

2020-06-27 Thread Wes McKinney
hi folks, I created 6 JIRA issues for adding validation checks for the bit width field that was just added to the columnar format metadata https://issues.apache.org/jira/browse/ARROW-9240 The steps that are needed are as follows: * Update compiled Flatbuffers (where relevant) for new field * Wh

[NIGHTLY] Arrow Build Report for Job nightly-2020-06-27-0

2020-06-27 Thread Crossbow
Arrow Build Report for Job nightly-2020-06-27-0 All tasks: https://github.com/ursa-labs/crossbow/branches/all?query=nightly-2020-06-27-0 Failed Tasks: - centos-7-aarch64: URL: https://github.com/ursa-labs/crossbow/branches/all?query=nightly-2020-06-27-0-travis-centos-7-aarch64 - debian-stre