GitHub user cloud-fan opened a pull request:
https://github.com/apache/spark/pull/16417
[SQL][WIP] support complex aggregate buffer in HashAggregateExec
## What changes were proposed in this pull request?
Currently we only support aggregate buffer with simple/primitive types for
`HashAggregateExec`. Ideally the buffer type should be mutable in an unsafe
row, and logicall struct type with all fixed-length fields is also mutable.
This PR fixes this problem, and we can run whole-stage codegen for
aggregate function with complex buffer type.
## How was this patch tested?
TODO
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/cloud-fan/spark udaf
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/16417.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #16417
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commit 1ace3ce54a6e34d8da39914d994a4ed504065e32
Author: Wenchen Fan <[email protected]>
Date: 2016-12-27T14:00:19Z
optimize nullable
commit e12c2051125af1f91f996f031132026fd8d4bbf5
Author: Wenchen Fan <[email protected]>
Date: 2016-12-27T17:28:29Z
tmp
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