[ https://issues.apache.org/jira/browse/HIVE-2843?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Phabricator updated HIVE-2843: ------------------------------ Attachment: HIVE-2843.D8745.1.patch navis requested code review of "HIVE-2843 [jira] UDAF to convert an aggregation to a map". Reviewers: JIRA HIVE-2843 UDAF to convert an aggregation to a map I propose the addition of two new Hive UDAF to help with maps in Apache Hive. The source code is available on GitHub at https://github.com/wdavidw/hive-udf in two Java classes: "UDAFToMap" and "UDAFToOrderedMap". The first function convert an aggregation into a map and is internally using a Java `HashMap`. The second function extends the first one. It convert an aggregation into an ordered map and is internally using a Java `TreeMap`. They both extends the `AbstractGenericUDAFResolver` class. Also, I have covered the motivations and usages of those UDAF in a blog post at http://adaltas.com/blog/2012/03/06/hive-udaf-map-conversion/ The full patch is available with tests as well. TEST PLAN EMPTY REVISION DETAIL https://reviews.facebook.net/D8745 AFFECTED FILES ql/src/java/org/apache/hadoop/hive/ql/exec/FunctionRegistry.java ql/src/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFImplodeToMap.java ql/src/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFImplodeToOrderedMap.java ql/src/test/queries/clientpositive/implode_to_map.q ql/src/test/queries/clientpositive/implode_to_ordered_map.q ql/src/test/results/clientpositive/implode_to_map.q.out ql/src/test/results/clientpositive/implode_to_ordered_map.q.out MANAGE HERALD RULES https://reviews.facebook.net/herald/view/differential/ WHY DID I GET THIS EMAIL? https://reviews.facebook.net/herald/transcript/21309/ To: JIRA, navis > UDAF to convert an aggregation to a map > --------------------------------------- > > Key: HIVE-2843 > URL: https://issues.apache.org/jira/browse/HIVE-2843 > Project: Hive > Issue Type: New Feature > Components: UDF > Affects Versions: 0.9.0, 0.10.0 > Reporter: David Worms > Priority: Minor > Labels: features, udf > Attachments: HIVE-2843.1.patch.txt, HIVE-2843.D8745.1.patch > > > I propose the addition of two new Hive UDAF to help with maps in Apache Hive. > The source code is available on GitHub at https://github.com/wdavidw/hive-udf > in two Java classes: "UDAFToMap" and "UDAFToOrderedMap". The first function > convert an aggregation into a map and is internally using a Java `HashMap`. > The second function extends the first one. It convert an aggregation into an > ordered map and is internally using a Java `TreeMap`. They both extends the > `AbstractGenericUDAFResolver` class. > Also, I have covered the motivations and usages of those UDAF in a blog post > at http://adaltas.com/blog/2012/03/06/hive-udaf-map-conversion/ > The full patch is available with tests as well. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira