GitHub user rashmi815 opened a pull request:
https://github.com/apache/incubator-madlib/pull/116
Unnest 2d array
Array Operations: Add function to unnest 2-D arrays into rows of 1-D arrays
JIRA: MADLIB-1086
Function to unnest 2-D array by one level (i.e. into rows of 1-D arrays).
This is needed, for instance, in K-means, so that we can get one centroid
per row for follow on operations.
- Added function to array operations
- Added an example in k-means to demonstrate usage
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/rashmi815/incubator-madlib unnest_2d_array
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-madlib/pull/116.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 #116
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commit 18e562813702d12d620594598f471161a990fbbd
Author: Rashmi Raghu <[email protected]>
Date: 2017-04-15T00:08:17Z
Unnest function, install-check tests completed. Initial docs included
commit 2a4baffa29c8f976d3260931c1790cfc125e91f4
Author: Rashmi Raghu <[email protected]>
Date: 2017-04-15T06:20:01Z
Refactored names of function output columns
commit a3eae964adc84382fa674e4d95c486f472b14099
Author: Rashmi Raghu <[email protected]>
Date: 2017-04-17T23:45:32Z
Updated docs (array_ops and k-means) and minor update to install-check tests
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