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| author | Wenchen Fan <wenchen@databricks.com> | 2016-04-29 23:04:51 -0700 |
|---|---|---|
| committer | Xiangrui Meng <meng@databricks.com> | 2016-04-29 23:04:51 -0700 |
| commit | 43b149fb885a27f9467aab28e5195f6f03aadcf0 (patch) | |
| tree | c8620d5d0f42e9f3238020e3bce8f8ea527182eb /R | |
| parent | 4bac703eb9dcc286d6b89630cf433f95b63a4a1f (diff) | |
| download | spark-43b149fb885a27f9467aab28e5195f6f03aadcf0.tar.gz spark-43b149fb885a27f9467aab28e5195f6f03aadcf0.tar.bz2 spark-43b149fb885a27f9467aab28e5195f6f03aadcf0.zip | |
[SPARK-14850][ML] convert primitive array from/to unsafe array directly in VectorUDT/MatrixUDT
## What changes were proposed in this pull request?
This PR adds `fromPrimitiveArray` and `toPrimitiveArray` in `UnsafeArrayData`, so that we can do the conversion much faster in VectorUDT/MatrixUDT.
## How was this patch tested?
existing tests and new test suite `UnsafeArraySuite`
Author: Wenchen Fan <wenchen@databricks.com>
Closes #12640 from cloud-fan/ml.
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