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From Milinda Pathirage <mpath...@umail.iu.edu>
Subject Re: time to hour converison
Date Sat, 07 Mar 2015 17:47:52 GMT
Hi Julian,

I am +1 for merging chi branch to master. I think its better to have
streaming related changes in 1.1 from the point of view of Samza.

Thanks
Milinda

On Sat, Mar 7, 2015 at 12:25 PM, Julian Hyde <julian@hydromatic.net> wrote:

> Milinda,
>
> Thanks for letting me know. The Statistic interface is a bit subtle
> (well done for finding it). I'm still refining the stream SPI. I'll
> make it simpler to define user-defined streams.
>
> By the way: The chi branch is fairly stable right now. Do you think I
> should merge it into master so that it can be in the 1.1 release? It
> doesn't include streaming joins, but it does include the streaming
> scan, filter, project, aggregate, sort. Samza-sql can build on that,
> and can always switch back to a calcite-chi snapshot if it needs a
> feature that isn't in the release.
>
> Julian
>
> On Fri, Mar 6, 2015 at 7:59 PM, Milinda Pathirage <mpathira@umail.iu.edu>
> wrote:
> > Hi Julian,
> >
> > I found the issue. It was due to the missing getStatistic implementaiton
> in
> > the Table returned from my table factory.
> >
> > Thanks
> > Milinda
> >
> > On Fri, Mar 6, 2015 at 5:08 PM, Milinda Pathirage <mpathira@umail.iu.edu
> >
> > wrote:
> >
> >> Hi Julian,
> >>
> >> Look like error was due to an old jar. Query went through parsing after
> >> cleaning and rebuilding Calcite. But I am still getting
> >>
> >> "Streaming aggregation requires at least one monotonic expression in
> GROUP
> >> BY clause".
> >>
> >> Most probably this should be due to incompatibilities in my query
> planner
> >> code and new changes to 'chi' branch. I'll debug and see whats going on.
> >>
> >> Thanks for the help.
> >>
> >> Milinda
> >>
> >> On Fri, Mar 6, 2015 at 3:33 PM, Julian Hyde <julianhyde@gmail.com>
> wrote:
> >>
> >>> We support “FLOOR(rowtime TO HOUR)”. The “TO” is part of the syntax
of
> >>> the FLOOR function, just as “AS” is part of the cast syntax “CAST(1.5
> AS
> >>> DOUBLE)”.
> >>>
> >>> And we support the CEIL function: "CEIL(rowtime TO DAY)”.
> >>>
> >>> What query did you try? Did you re-generate the parser (“mvn clean”)?
> >>>
> >>> Julian
> >>>
> >>>
> >>> On Mar 6, 2015, at 12:28 PM, Milinda Pathirage <mpathira@umail.iu.edu>
> >>> wrote:
> >>>
> >>> > Hi Julian,
> >>> >
> >>> > Is expressions like 'rowtime TO HOUR' supported in 'chi' branch. I
am
> >>> > getting a parser error when I tried a sample query from
> >>> >
> https://github.com/julianhyde/incubator-calcite/blob/chi/doc/STREAM.md
> >>> with
> >>> > latest build from 'chi' branch.
> >>> >
> >>> > Thanks
> >>> > Milinda
> >>> >
> >>> >
> >>> > --
> >>> > Milinda Pathirage
> >>> >
> >>> > PhD Student | Research Assistant
> >>> > School of Informatics and Computing | Data to Insight Center
> >>> > Indiana University
> >>> >
> >>> > twitter: milindalakmal
> >>> > skype: milinda.pathirage
> >>> > blog: http://milinda.pathirage.org
> >>>
> >>>
> >>
> >>
> >> --
> >> Milinda Pathirage
> >>
> >> PhD Student | Research Assistant
> >> School of Informatics and Computing | Data to Insight Center
> >> Indiana University
> >>
> >> twitter: milindalakmal
> >> skype: milinda.pathirage
> >> blog: http://milinda.pathirage.org
> >>
> >
> >
> >
> > --
> > Milinda Pathirage
> >
> > PhD Student | Research Assistant
> > School of Informatics and Computing | Data to Insight Center
> > Indiana University
> >
> > twitter: milindalakmal
> > skype: milinda.pathirage
> > blog: http://milinda.pathirage.org
>



-- 
Milinda Pathirage

PhD Student | Research Assistant
School of Informatics and Computing | Data to Insight Center
Indiana University

twitter: milindalakmal
skype: milinda.pathirage
blog: http://milinda.pathirage.org

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