Hi camellia,
Above all, I'm sorry for lack of documents. I'm reading your design
document. That looks great. After I read it deeply, I'll give comment to
you. Now, I leave answers of your questions.
1) I assumed that the join condition is specified in the FROM clause, not
in the WHERE clause. Is this assumption fine?
Actually, inner join conditions can be in either FROM clause or WHERE
clause. Outer joins (qualified join) must be in FROM clause. So, the
assumption is fine.
2) Are there any PK and UNIQUE constraints in TAJO?
--> this is related to EXT 3.2 in the SDD, which otherwise is not
possible
Currently, there are no PK and UNIQUE constraints in Tajo. In the future,
Tajo can have such constraints. I'll mention this work after I think it
more.
3) At stage 5, DEC5.1. not sure if needed.
If you build a global plan correctly, the plan will work in the cluster. I
think that you don't need to add any extension to that part.
4) I need to understand better the link between TaskRunnerLaunchImpl,
TaskRunnerListenerImpl, Task and TaskRunner. Is any documentation
available, please?
Actually, there is no available document for those parts. I'm sorry for
this point. I'll make a comprehensive document for those parts. I'll take a
Ph.D. oral defense at June 11. I'll share the document with you until June
13. After the defense, I can spend my whole time on Tajo.
Best regards,
Hyunsik
On Sat, Jun 8, 2013 at 11:12 PM, camelia c <[email protected]> wrote:
> Hello,
>
> I uploaded version 1 of the SDD and here are some items to discuss &
> questions:
>
> 1) I assumed that the join condition is specified in the FROM clause, not
> in the WHERE clause. Is this assumption fine?
>
> 2) Are there any PK and UNIQUE constraints in TAJO?
> --> this is related to EXT 3.2 in the SDD, which otherwise is not
> possible
>
> 3) At stage 5, DEC5.1. not sure if needed.
>
> 4) I need to understand better the link between TaskRunnerLaunchImpl,
> TaskRunnerListenerImpl, Task and TaskRunner. Is any documentation
> available, please?
>
> Next week, I plan to make a diagram as well and to take some example
> queries and analyze the output of each stage of processing for them.
>
> I look forward to receiving Your feedback!
>
> Thank You!
> Camelia
>
>
>
> --- On Sun, 6/2/13, Hyunsik Choi <[email protected]> wrote:
>
> From: Hyunsik Choi <[email protected]>
> Subject: Re: [GSoc2013] - Outer Join
> To: "tajo-dev" <[email protected]>
> Date: Sunday, June 2, 2013, 9:59 PM
>
> Camelia,
>
> Wow! That site really looks great and very informative to us.
>
> - hyunsik
>
>
> On Sat, Jun 1, 2013 at 5:12 AM, camelia c <[email protected]> wrote:
>
> >
> > Hello,
> >
> > This is the website I've created:
> >
> > https://sites.google.com/site/gsoc2013tajo34/home
> >
> > Thank You,
> > Camelia
> >
> >
> > --- On Thu, 5/30/13, Henry Saputra <[email protected]> wrote:
> >
> > From: Henry Saputra <[email protected]>
> > Subject: Re: [GSoc2013] - Outer Join
> > To: "[email protected]" <[email protected]>
> > Date: Thursday, May 30, 2013, 3:00 PM
> >
> > You can link it to the Tajo wiki to help centralize the info about GSOC
> for
> > Tajo: http://wiki.apache.org/tajo/GSoC2013
> >
> > Or you can create a page in the wiki for the design too.
> >
> >
> > - Henry
> >
> >
> > On Wed, May 29, 2013 at 7:41 PM, Hyunsik Choi <[email protected]>
> wrote:
> >
> > > Hi camelia,
> > >
> > > That's good start. We could find the right way from your design
> document
> > > for this project.
> > >
> > > If your work is available online, I don't care. You can use Google
> site,
> > a
> > > blog, or github. You also can share your work on your blog and some
> code
> > > repository like github.
> > >
> > > Best regards,
> > > Hyunsik
> > >
> > >
> > > On Thu, May 30, 2013 at 5:31 AM, camelia c <[email protected]>
> > wrote:
> > >
> > > > Hello,
> > > >
> > > > I started working at the Software Design Document for this project,
> as
> > > > planned in the schedule for this period, and I hope that by the start
> > of
> > > > next week( Monday, June 3rd) to have the version 1 of it to discuss
> it
> > > with
> > > > You.
> > > >
> > > > Also, I was wondering how do You prefer that I keep track online of
> the
> > > > work at the project: a Google site or a blog or what else do You
> > suggest?
> > > > Something like a weekly diary of the progress at this project.
> > > >
> > > > Thank You very much,
> > > > Camelia
> > > >
> > > >
> > > > --- On Tue, 5/28/13, Henry Saputra <[email protected]> wrote:
> > > >
> > > > From: Henry Saputra <[email protected]>
> > > > Subject: Re: [GSoc2013] - Outer Join
> > > > To: "[email protected]" <[email protected]>
> > > > Date: Tuesday, May 28, 2013, 1:14 AM
> > > >
> > > > Woot!
> > > >
> > > > On Monday, May 27, 2013, camelia c wrote:
> > > >
> > > > > Hello,
> > > > >
> > > > > Thank You very much for having accepted my proposal for the TAJO
> > > > Project!
> > > > >
> > > > > Looking forward to plenty of good results working at TAJO,
> > > > > Camelia
> > > > >
> > > > >
> > > >
> > >
> >
>
