GitHub user myui opened a pull request:
https://github.com/apache/incubator-hivemall/pull/102
[HIVEMALL-127][Improvement] Added tree_predict_v1 UDF for RandomForest
backward compatibility
## What changes were proposed in this pull request?
Added `tree_predict_v1` UDF for RandomForest backward compatibility
## What type of PR is it?
Improvement
## What is the Jira issue?
https://issues.apache.org/jira/browse/HIVEMALL-127
## How was this patch tested?
unit tests, manual tests
## How to use this feature?
```sql
set hivevar:classification=true;
create table predicted
as
SELECT
rowid,
rf_ensemble(predicted) as predicted
FROM (
SELECT
rowid,
tree_predict_v1(p.model_id, p.model_type, p.pred_model, t.features,
${classification}) as predicted
FROM
model p
LEFT OUTER JOIN -- CROSS JOIN
training t
) t1
group by
rowid;
```
## Checklist
- [x] Did you apply source code formatter, i.e., `mvn formatter:format`,
for your commit?
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/myui/incubator-hivemall HIVEMALL-127
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-hivemall/pull/102.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 #102
----
commit 7f3ca6b301df2af94055e1024dc28b9c3b2d1a2f
Author: Makoto Yui <[email protected]>
Date: 2017-07-18T09:52:45Z
Added tree_predict_v1 UDF for RandomForest backward compatibility
----
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