[jira] [Commented] (ASTERIXDB-2488) Aggregate window functions

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    [ https://issues.apache.org/jira/browse/ASTERIXDB-2488?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16733518#comment-16733518 ] 

ASF subversion and git services commented on ASTERIXDB-2488:
------------------------------------------------------------

Commit f2c18aa9646238ab2487ce3a964edfe3e61dd6e1 in asterixdb's branch refs/heads/master from Dmitry Lychagin
[ https://git-wip-us.apache.org/repos/asf?p=asterixdb.git;h=f2c18aa ]

[ASTERIXDB-2488][COMP] Support aggregate window functions

- user model changes: yes
- storage format changes: no
- interface changes: no

Details:
- Implement aggregate window functions:
  agg_func() OVER (frame_var AS)? (PARTITION BY ... ORDER BY ... frame_spec)
- Where agg_func is a SQL/SQL++ aggregate function
- Fix percent_rank() to always return 0 for the first tuple
- Fix ntile() to handle NULL argument
- Log query after each rewrite rule in SqlppQueryRewriter
- Implement toString() for ADayTimeDuration, fix it for AYearMonthDuration
- Add seek() method to RunFileReader

Change-Id: If0f71118a04c2dbd3462070673d52e67f076b7e1
Reviewed-on: https://asterix-gerrit.ics.uci.edu/3049
Tested-by: Jenkins <je...@fulliautomatix.ics.uci.edu>
Integration-Tests: Jenkins <je...@fulliautomatix.ics.uci.edu>
Contrib: Jenkins <je...@fulliautomatix.ics.uci.edu>
Reviewed-by: Ali Alsuliman <al...@gmail.com>


> Aggregate window functions
> --------------------------
>
>                 Key: ASTERIXDB-2488
>                 URL: https://issues.apache.org/jira/browse/ASTERIXDB-2488
>             Project: Apache AsterixDB
>          Issue Type: Improvement
>          Components: COMP - Compiler
>            Reporter: Dmitry Lychagin
>            Assignee: Dmitry Lychagin
>            Priority: Major
>
> # Add support for aggregates as window functions ( agg() over (....) ) where 'agg' is a SQL/SQL++ aggregate function
>  # Implement window frame specification



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