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Posted to dev@tajo.apache.org by Hyunsik Choi <hy...@apache.org> on 2013/06/03 03:59:31 UTC

Re: [GSoc2013] - Outer Join

Camelia,

Wow! That site really looks great and very informative to us.

- hyunsik


On Sat, Jun 1, 2013 at 5:12 AM, camelia c <ca...@yahoo.com> 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 <he...@gmail.com> wrote:
>
> From: Henry Saputra <he...@gmail.com>
> Subject: Re: [GSoc2013] - Outer Join
> To: "dev@tajo.incubator.apache.org" <de...@tajo.incubator.apache.org>
> 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 <hy...@apache.org> 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 <ca...@yahoo.com>
> 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 <he...@gmail.com> wrote:
> > >
> > > From: Henry Saputra <he...@gmail.com>
> > > Subject: Re: [GSoc2013] - Outer Join
> > > To: "dev@tajo.incubator.apache.org" <de...@tajo.incubator.apache.org>
> > > 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
> > > >
> > > >
> > >
> >
>

Re: [GSoc2013] - Outer Join

Posted by Hyunsik Choi <hy...@apache.org>.
Dear Camellia,

I'm sorry for the belated reply. In overall, I agree on your approach. Your
work looks great. However, I would like to advise a couple of things.

First, although the part on which you have focused is not frequently
updated, I would like to encourage you to rebase continually your work on
updated source code. Your current work is based on the old revision of
Tajo. Sometimes, a number of small changes may make code merge very hard.

Second, I think that LogicalOptimizer class is the better place to perform
validateOuterJoin and rewriteOuterJoin methods. Those methods seem to be
executed before selection and projection push down. You could place your
methods before them.

Finally, maybe, you've tried to traverse join conditions (i.e., EvalTree).
EvalTreeUtil has various and helpful methods that you may want.

In addition, I'm always available on google talk (hyunsik dot choi at gmail
dot com). If you don't have google account, I'll be on #tajo at freenode.
If you want to discuss something in an instance way, please use either one.

Best regards,
Hyunsik Choi












On Fri, Jul 5, 2013 at 6:50 AM, camelia c <ca...@yahoo.com> wrote:

> Hello,
>
> Thank You for Your kind feedback!
>
> I began coding and I uploaded the source code written so far on the
> website at https://sites.google.com/site/gsoc2013tajo34/home/validation.
>
> It is uploaded as an attachment and there are some other files with tests
> I've done.
>
> I continue with the optimization of changing outer joins to inner joins,
> whenever suitable , in method rewriteOuterJoin, as proposed in EXT 3.3 in
> the Software Design Document.
>
> In the following days I shall upload this source code as well.
>
> Please be kind to give me feedback of whether You are content with the
> source code I wrote so far and if You agree on the processing performed so
> far.
>
> Yours sincerely,
> Camelia
>
> --------------------------------------------
> On Wed, 7/3/13, Hyunsik Choi <hy...@apache.org> wrote:
>
>  Subject: Re: [GSoc2013] - Outer Join
>  To: "tajo-dev" <de...@tajo.incubator.apache.org>
>  Date: Wednesday, July 3, 2013, 10:04 PM
>
>  Camellia,
>
>  Since you submitted your proposal,  I've been amazed at
>  your work.
>
>  Your progress looks great.
>  https://sites.google.com/site/gsoc2013tajo34/home
>
>  Especially, I would like to share this figure created by
>  camellia with
>  community. It looks very helpful for all of us.
>  http://goo.gl/LuwqH (The Life of A Query in Tajo)
>
>  If you want more material about Tajo internal or need
>  out-of-scope issues
>  to be solved, please feel feel to ask me.
>
>  Best regards,
>  Hyunsik
>
>
>
>
>
>
>  On Mon, Jun 17, 2013 at 7:34 AM, camelia c <ca...@yahoo.com>
>  wrote:
>
>  > Thank You very much for Your feedback and for the
>  materials You added this
>  > week on the Wiki.
>  >
>  > Yours sincerely,
>  > Camelia
>  >
>  >
>  >
>  > --- On Sun, 6/16/13, Hyunsik Choi  wrote:
>  >
>  > > From: Hyunsik Choi
>  > > Subject: Re: [GSoc2013] - Outer Join
>  > > To: "tajo-dev"
>  > > Date: Sunday, June 16, 2013, 11:21 AM
>  > > Camellia,
>  > >
>  > > Your design document is really well surveyed. That
>  includes
>  > > very helpful
>  > > literature. If there are issues which are out of
>  scope of
>  > > your project
>  > > (TAJO-34) and should be done before your work,
>  please feel
>  > > free to ask me
>  > > or create additional Jira issues.
>  > >
>  > > Thanks,
>  > > Hyunsik
>  > >
>  > >
>  > > On Sat, Jun 8, 2013 at 11:12 PM, camelia c
>  > > 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
>  > > wrote:
>  > > >
>  > > > From: Hyunsik Choi
>  > > > Subject: Re: [GSoc2013] - Outer Join
>  > > > To: "tajo-dev"
>  > > > 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
>  > > 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
>  > > wrote:
>  > > > >
>  > > > > From: Henry Saputra
>  > > > > Subject: Re: [GSoc2013] - Outer Join
>  > > > > To: "dev@tajo.incubator.apache.org"
>  > >
>  > > > > 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
>  > >
>  > > > 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
>  > >
>  > > > > 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
>  > >
>  > > wrote:
>  > > > > > >
>  > > > > > > From: Henry Saputra
>  > > > > > > Subject: Re: [GSoc2013] -
>  Outer Join
>  > > > > > > To: "dev@tajo.incubator.apache.org"
>  > >
>  > > > > > > 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
>  > > > > > > >
>  > > > > > > >
>  > > > > > >
>  > > > > >
>  > > > >
>  > > >
>  > >
>  >
>
>

Re: [GSoc2013] - Outer Join

Posted by camelia c <ca...@yahoo.com>.
Hello,

Thank You for Your kind feedback!

I began coding and I uploaded the source code written so far on the website at https://sites.google.com/site/gsoc2013tajo34/home/validation.  

It is uploaded as an attachment and there are some other files with tests I've done.

I continue with the optimization of changing outer joins to inner joins, whenever suitable , in method rewriteOuterJoin, as proposed in EXT 3.3 in the Software Design Document.

In the following days I shall upload this source code as well.

Please be kind to give me feedback of whether You are content with the source code I wrote so far and if You agree on the processing performed so far. 

Yours sincerely,
Camelia

--------------------------------------------
On Wed, 7/3/13, Hyunsik Choi <hy...@apache.org> wrote:

 Subject: Re: [GSoc2013] - Outer Join
 To: "tajo-dev" <de...@tajo.incubator.apache.org>
 Date: Wednesday, July 3, 2013, 10:04 PM
 
 Camellia,
 
 Since you submitted your proposal,  I've been amazed at
 your work.
 
 Your progress looks great.
 https://sites.google.com/site/gsoc2013tajo34/home
 
 Especially, I would like to share this figure created by
 camellia with
 community. It looks very helpful for all of us.
 http://goo.gl/LuwqH (The Life of A Query in Tajo)
 
 If you want more material about Tajo internal or need
 out-of-scope issues
 to be solved, please feel feel to ask me.
 
 Best regards,
 Hyunsik
 
 
 
 
 
 
 On Mon, Jun 17, 2013 at 7:34 AM, camelia c <ca...@yahoo.com>
 wrote:
 
 > Thank You very much for Your feedback and for the
 materials You added this
 > week on the Wiki.
 >
 > Yours sincerely,
 > Camelia
 >
 >
 >
 > --- On Sun, 6/16/13, Hyunsik Choi  wrote:
 >
 > > From: Hyunsik Choi
 > > Subject: Re: [GSoc2013] - Outer Join
 > > To: "tajo-dev"
 > > Date: Sunday, June 16, 2013, 11:21 AM
 > > Camellia,
 > >
 > > Your design document is really well surveyed. That
 includes
 > > very helpful
 > > literature. If there are issues which are out of
 scope of
 > > your project
 > > (TAJO-34) and should be done before your work,
 please feel
 > > free to ask me
 > > or create additional Jira issues.
 > >
 > > Thanks,
 > > Hyunsik
 > >
 > >
 > > On Sat, Jun 8, 2013 at 11:12 PM, camelia c
 > > 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
 > > wrote:
 > > >
 > > > From: Hyunsik Choi
 > > > Subject: Re: [GSoc2013] - Outer Join
 > > > To: "tajo-dev"
 > > > 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
 > > 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
 > > wrote:
 > > > >
 > > > > From: Henry Saputra
 > > > > Subject: Re: [GSoc2013] - Outer Join
 > > > > To: "dev@tajo.incubator.apache.org"
 > >
 > > > > 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
 > >
 > > > 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
 > >
 > > > > 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
 > >
 > > wrote:
 > > > > > >
 > > > > > > From: Henry Saputra
 > > > > > > Subject: Re: [GSoc2013] -
 Outer Join
 > > > > > > To: "dev@tajo.incubator.apache.org"
 > >
 > > > > > > 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
 > > > > > > >
 > > > > > > >
 > > > > > >
 > > > > >
 > > > >
 > > >
 > >
 >
 

Re: [GSoc2013] - Outer Join

Posted by Hyunsik Choi <hy...@apache.org>.
Camellia,

Since you submitted your proposal,  I've been amazed at your work.

Your progress looks great.
https://sites.google.com/site/gsoc2013tajo34/home

Especially, I would like to share this figure created by camellia with
community. It looks very helpful for all of us.
http://goo.gl/LuwqH (The Life of A Query in Tajo)

If you want more material about Tajo internal or need out-of-scope issues
to be solved, please feel feel to ask me.

Best regards,
Hyunsik






On Mon, Jun 17, 2013 at 7:34 AM, camelia c <ca...@yahoo.com> wrote:

> Thank You very much for Your feedback and for the materials You added this
> week on the Wiki.
>
> Yours sincerely,
> Camelia
>
>
>
> --- On Sun, 6/16/13, Hyunsik Choi  wrote:
>
> > From: Hyunsik Choi
> > Subject: Re: [GSoc2013] - Outer Join
> > To: "tajo-dev"
> > Date: Sunday, June 16, 2013, 11:21 AM
> > Camellia,
> >
> > Your design document is really well surveyed. That includes
> > very helpful
> > literature. If there are issues which are out of scope of
> > your project
> > (TAJO-34) and should be done before your work, please feel
> > free to ask me
> > or create additional Jira issues.
> >
> > Thanks,
> > Hyunsik
> >
> >
> > On Sat, Jun 8, 2013 at 11:12 PM, camelia c
> > 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
> > wrote:
> > >
> > > From: Hyunsik Choi
> > > Subject: Re: [GSoc2013] - Outer Join
> > > To: "tajo-dev"
> > > 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
> > 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
> > wrote:
> > > >
> > > > From: Henry Saputra
> > > > Subject: Re: [GSoc2013] - Outer Join
> > > > To: "dev@tajo.incubator.apache.org"
> >
> > > > 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
> >
> > > 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
> >
> > > > 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
> >
> > wrote:
> > > > > >
> > > > > > From: Henry Saputra
> > > > > > Subject: Re: [GSoc2013] - Outer Join
> > > > > > To: "dev@tajo.incubator.apache.org"
> >
> > > > > > 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
> > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
>

Re: [GSoc2013] - Outer Join

Posted by camelia c <ca...@yahoo.com>.
Thank You very much for Your feedback and for the materials You added this week on the Wiki.

Yours sincerely,
Camelia



--- On Sun, 6/16/13, Hyunsik Choi  wrote:

&gt; From: Hyunsik Choi 
&gt; Subject: Re: [GSoc2013] - Outer Join
&gt; To: &quot;tajo-dev&quot; 
&gt; Date: Sunday, June 16, 2013, 11:21 AM
&gt; Camellia,
&gt; 
&gt; Your design document is really well surveyed. That includes
&gt; very helpful
&gt; literature. If there are issues which are out of scope of
&gt; your project
&gt; (TAJO-34) and should be done before your work, please feel
&gt; free to ask me
&gt; or create additional Jira issues.
&gt; 
&gt; Thanks,
&gt; Hyunsik
&gt; 
&gt; 
&gt; On Sat, Jun 8, 2013 at 11:12 PM, camelia c 
&gt; wrote:
&gt; 
&gt; &gt; Hello,
&gt; &gt;
&gt; &gt; I uploaded version 1 of the SDD and here are some items
&gt; to discuss &
&gt; &gt; questions:
&gt; &gt;
&gt; &gt; 1) I assumed that the join condition is specified in
&gt; the FROM clause, not
&gt; &gt; in the WHERE clause. Is this assumption fine?
&gt; &gt;
&gt; &gt; 2) Are there any PK and UNIQUE constraints in TAJO?
&gt; &gt;          --&gt; this is
&gt; related to EXT 3.2 in the SDD, which otherwise is not
&gt; &gt; possible
&gt; &gt;
&gt; &gt; 3) At stage 5, DEC5.1. not sure if needed.
&gt; &gt;
&gt; &gt; 4) I need to understand better the link between
&gt; TaskRunnerLaunchImpl,
&gt; &gt; TaskRunnerListenerImpl, Task  and TaskRunner. Is
&gt; any documentation
&gt; &gt; available, please?
&gt; &gt;
&gt; &gt; Next week, I plan to make a diagram as well and to take
&gt; some example
&gt; &gt; queries and analyze the output of each stage of
&gt; processing for them.
&gt; &gt;
&gt; &gt; I look forward to receiving Your feedback!
&gt; &gt;
&gt; &gt; Thank You!
&gt; &gt; Camelia
&gt; &gt;
&gt; &gt;
&gt; &gt;
&gt; &gt; --- On Sun, 6/2/13, Hyunsik Choi 
&gt; wrote:
&gt; &gt;
&gt; &gt; From: Hyunsik Choi 
&gt; &gt; Subject: Re: [GSoc2013] - Outer Join
&gt; &gt; To: &quot;tajo-dev&quot; 
&gt; &gt; Date: Sunday, June 2, 2013, 9:59 PM
&gt; &gt;
&gt; &gt; Camelia,
&gt; &gt;
&gt; &gt; Wow! That site really looks great and very informative
&gt; to us.
&gt; &gt;
&gt; &gt; - hyunsik
&gt; &gt;
&gt; &gt;
&gt; &gt; On Sat, Jun 1, 2013 at 5:12 AM, camelia c 
&gt; wrote:
&gt; &gt;
&gt; &gt; &gt;
&gt; &gt; &gt; Hello,
&gt; &gt; &gt;
&gt; &gt; &gt; This is the website I&#39;ve created:
&gt; &gt; &gt;
&gt; &gt; &gt; https://sites.google.com/site/gsoc2013tajo34/home
&gt; &gt; &gt;
&gt; &gt; &gt; Thank You,
&gt; &gt; &gt; Camelia
&gt; &gt; &gt;
&gt; &gt; &gt;
&gt; &gt; &gt; --- On Thu, 5/30/13, Henry Saputra 
&gt; wrote:
&gt; &gt; &gt;
&gt; &gt; &gt; From: Henry Saputra 
&gt; &gt; &gt; Subject: Re: [GSoc2013] - Outer Join
&gt; &gt; &gt; To: &quot;dev@tajo.incubator.apache.org&quot;
&gt; 
&gt; &gt; &gt; Date: Thursday, May 30, 2013, 3:00 PM
&gt; &gt; &gt;
&gt; &gt; &gt; You can link it to the Tajo wiki to help
&gt; centralize the info about GSOC
&gt; &gt; for
&gt; &gt; &gt; Tajo: http://wiki.apache.org/tajo/GSoC2013
&gt; &gt; &gt;
&gt; &gt; &gt; Or you can create a page in the wiki for the
&gt; design too.
&gt; &gt; &gt;
&gt; &gt; &gt;
&gt; &gt; &gt; - Henry
&gt; &gt; &gt;
&gt; &gt; &gt;
&gt; &gt; &gt; On Wed, May 29, 2013 at 7:41 PM, Hyunsik Choi
&gt; 
&gt; &gt; wrote:
&gt; &gt; &gt;
&gt; &gt; &gt; &gt; Hi camelia,
&gt; &gt; &gt; &gt;
&gt; &gt; &gt; &gt; That&#39;s good start. We could find the right
&gt; way from your design
&gt; &gt; document
&gt; &gt; &gt; &gt; for this project.
&gt; &gt; &gt; &gt;
&gt; &gt; &gt; &gt; If your work is available online, I don&#39;t
&gt; care. You can use Google
&gt; &gt; site,
&gt; &gt; &gt; a
&gt; &gt; &gt; &gt; blog, or github. You also can share your work
&gt; on your blog and some
&gt; &gt; code
&gt; &gt; &gt; &gt; repository like github.
&gt; &gt; &gt; &gt;
&gt; &gt; &gt; &gt; Best regards,
&gt; &gt; &gt; &gt; Hyunsik
&gt; &gt; &gt; &gt;
&gt; &gt; &gt; &gt;
&gt; &gt; &gt; &gt; On Thu, May 30, 2013 at 5:31 AM, camelia c
&gt; 
&gt; &gt; &gt; wrote:
&gt; &gt; &gt; &gt;
&gt; &gt; &gt; &gt; &gt; Hello,
&gt; &gt; &gt; &gt; &gt;
&gt; &gt; &gt; &gt; &gt; I started working at the Software Design
&gt; Document for this project,
&gt; &gt; as
&gt; &gt; &gt; &gt; &gt; planned in the schedule for this period,
&gt; and I hope that by the start
&gt; &gt; &gt; of
&gt; &gt; &gt; &gt; &gt; next week( Monday, June 3rd) to have the
&gt; version 1 of it to discuss
&gt; &gt; it
&gt; &gt; &gt; &gt; with
&gt; &gt; &gt; &gt; &gt; You.
&gt; &gt; &gt; &gt; &gt;
&gt; &gt; &gt; &gt; &gt; Also, I was wondering how do You prefer
&gt; that I keep track online of
&gt; &gt; the
&gt; &gt; &gt; &gt; &gt; work at the project: a Google site or a
&gt; blog or what else do You
&gt; &gt; &gt; suggest?
&gt; &gt; &gt; &gt; &gt; Something like a weekly diary of the
&gt; progress at this project.
&gt; &gt; &gt; &gt; &gt;
&gt; &gt; &gt; &gt; &gt; Thank You very much,
&gt; &gt; &gt; &gt; &gt; Camelia
&gt; &gt; &gt; &gt; &gt;
&gt; &gt; &gt; &gt; &gt;
&gt; &gt; &gt; &gt; &gt; --- On Tue, 5/28/13, Henry Saputra
&gt; 
&gt; wrote:
&gt; &gt; &gt; &gt; &gt;
&gt; &gt; &gt; &gt; &gt; From: Henry Saputra 
&gt; &gt; &gt; &gt; &gt; Subject: Re: [GSoc2013] - Outer Join
&gt; &gt; &gt; &gt; &gt; To: &quot;dev@tajo.incubator.apache.org&quot;
&gt; 
&gt; &gt; &gt; &gt; &gt; Date: Tuesday, May 28, 2013, 1:14 AM
&gt; &gt; &gt; &gt; &gt;
&gt; &gt; &gt; &gt; &gt; Woot!
&gt; &gt; &gt; &gt; &gt;
&gt; &gt; &gt; &gt; &gt; On Monday, May 27, 2013, camelia c
&gt; wrote:
&gt; &gt; &gt; &gt; &gt;
&gt; &gt; &gt; &gt; &gt; &gt; Hello,
&gt; &gt; &gt; &gt; &gt; &gt;
&gt; &gt; &gt; &gt; &gt; &gt;  Thank You very much for
&gt; having accepted my proposal for the TAJO
&gt; &gt; &gt; &gt; &gt; Project!
&gt; &gt; &gt; &gt; &gt; &gt;
&gt; &gt; &gt; &gt; &gt; &gt; Looking forward to plenty of good
&gt; results working at TAJO,
&gt; &gt; &gt; &gt; &gt; &gt; Camelia
&gt; &gt; &gt; &gt; &gt; &gt;
&gt; &gt; &gt; &gt; &gt; &gt;
&gt; &gt; &gt; &gt; &gt;
&gt; &gt; &gt; &gt;
&gt; &gt; &gt;
&gt; &gt;
&gt;

Re: [GSoc2013] - Outer Join

Posted by Hyunsik Choi <hy...@apache.org>.
Camellia,

Your design document is really well surveyed. That includes very helpful
literature. If there are issues which are out of scope of your project
(TAJO-34) and should be done before your work, please feel free to ask me
or create additional Jira issues.

Thanks,
Hyunsik


On Sat, Jun 8, 2013 at 11:12 PM, camelia c <ca...@yahoo.com> 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 <hy...@apache.org> wrote:
>
> From: Hyunsik Choi <hy...@apache.org>
> Subject: Re: [GSoc2013] - Outer Join
> To: "tajo-dev" <de...@tajo.incubator.apache.org>
> 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 <ca...@yahoo.com> 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 <he...@gmail.com> wrote:
> >
> > From: Henry Saputra <he...@gmail.com>
> > Subject: Re: [GSoc2013] - Outer Join
> > To: "dev@tajo.incubator.apache.org" <de...@tajo.incubator.apache.org>
> > 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 <hy...@apache.org>
> 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 <ca...@yahoo.com>
> > 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 <he...@gmail.com> wrote:
> > > >
> > > > From: Henry Saputra <he...@gmail.com>
> > > > Subject: Re: [GSoc2013] - Outer Join
> > > > To: "dev@tajo.incubator.apache.org" <de...@tajo.incubator.apache.org>
> > > > 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
> > > > >
> > > > >
> > > >
> > >
> >
>

Re: [GSoc2013] - Outer Join

Posted by Hyunsik Choi <hy...@apache.org>.
Tejas,

Thank you. I'll continue to write additional descriptions :)


On Thu, Jun 13, 2013 at 6:22 PM, Tejas Patil <te...@gmail.com>wrote:

> This is awesome Hyunsik .. very helpful for newbies like me. Keep adding :)
>
>
> On Thu, Jun 13, 2013 at 2:18 AM, Hyunsik Choi <hy...@apache.org> wrote:
>
> > I omitted the wiki page link in the previous post.
> >
> > http://wiki.apache.org/tajo/Architecture
> >
> >
> > On Thu, Jun 13, 2013 at 6:17 PM, Hyunsik Choi <hy...@apache.org>
> wrote:
> >
> > > Hi Camellia,
> > >
> > > I've added a wiki page which contains brief descriptions about
> > > TaskRunnerLaunchImpl, TaskRunnerListenerImpl, Task and TaskRunner. I
> hope
> > > that this page is useful for you.
> > >
> > > Also, PK and UNIQUE is not supported in the current implementation of
> > > Tajo. Now, It would be good to omit EXT 3.2. Later, if Tajo supports PK
> > and
> > > UNIQUE, let's discuss that feature at that time.
> > >
> > > If you need additional documents about Tajo internals, feel free to ask
> > me.
> > >
> > > Best regards,
> > > Hyunsik
> > >
> > >
> > >
> > > On Sun, Jun 9, 2013 at 8:32 PM, Hyunsik Choi <hy...@apache.org>
> wrote:
> > >
> > >> 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 <camelie_1985@yahoo.com
> > >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 <hy...@apache.org> wrote:
> > >>>
> > >>> From: Hyunsik Choi <hy...@apache.org>
> > >>> Subject: Re: [GSoc2013] - Outer Join
> > >>> To: "tajo-dev" <de...@tajo.incubator.apache.org>
> > >>> 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 <ca...@yahoo.com>
> > >>> 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 <he...@gmail.com>
> wrote:
> > >>> >
> > >>> > From: Henry Saputra <he...@gmail.com>
> > >>> > Subject: Re: [GSoc2013] - Outer Join
> > >>> > To: "dev@tajo.incubator.apache.org" <dev@tajo.incubator.apache.org
> >
> > >>> > 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 <hy...@apache.org>
> > >>> 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 <
> camelie_1985@yahoo.com
> > >
> > >>> > 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 <he...@gmail.com>
> > >>> wrote:
> > >>> > > >
> > >>> > > > From: Henry Saputra <he...@gmail.com>
> > >>> > > > Subject: Re: [GSoc2013] - Outer Join
> > >>> > > > To: "dev@tajo.incubator.apache.org" <
> > dev@tajo.incubator.apache.org
> > >>> >
> > >>> > > > 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
> > >>> > > > >
> > >>> > > > >
> > >>> > > >
> > >>> > >
> > >>> >
> > >>>
> > >>
> > >>
> > >
> >
>

Re: [GSoc2013] - Outer Join

Posted by Tejas Patil <te...@gmail.com>.
This is awesome Hyunsik .. very helpful for newbies like me. Keep adding :)


On Thu, Jun 13, 2013 at 2:18 AM, Hyunsik Choi <hy...@apache.org> wrote:

> I omitted the wiki page link in the previous post.
>
> http://wiki.apache.org/tajo/Architecture
>
>
> On Thu, Jun 13, 2013 at 6:17 PM, Hyunsik Choi <hy...@apache.org> wrote:
>
> > Hi Camellia,
> >
> > I've added a wiki page which contains brief descriptions about
> > TaskRunnerLaunchImpl, TaskRunnerListenerImpl, Task and TaskRunner. I hope
> > that this page is useful for you.
> >
> > Also, PK and UNIQUE is not supported in the current implementation of
> > Tajo. Now, It would be good to omit EXT 3.2. Later, if Tajo supports PK
> and
> > UNIQUE, let's discuss that feature at that time.
> >
> > If you need additional documents about Tajo internals, feel free to ask
> me.
> >
> > Best regards,
> > Hyunsik
> >
> >
> >
> > On Sun, Jun 9, 2013 at 8:32 PM, Hyunsik Choi <hy...@apache.org> wrote:
> >
> >> 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 <camelie_1985@yahoo.com
> >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 <hy...@apache.org> wrote:
> >>>
> >>> From: Hyunsik Choi <hy...@apache.org>
> >>> Subject: Re: [GSoc2013] - Outer Join
> >>> To: "tajo-dev" <de...@tajo.incubator.apache.org>
> >>> 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 <ca...@yahoo.com>
> >>> 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 <he...@gmail.com> wrote:
> >>> >
> >>> > From: Henry Saputra <he...@gmail.com>
> >>> > Subject: Re: [GSoc2013] - Outer Join
> >>> > To: "dev@tajo.incubator.apache.org" <de...@tajo.incubator.apache.org>
> >>> > 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 <hy...@apache.org>
> >>> 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 <camelie_1985@yahoo.com
> >
> >>> > 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 <he...@gmail.com>
> >>> wrote:
> >>> > > >
> >>> > > > From: Henry Saputra <he...@gmail.com>
> >>> > > > Subject: Re: [GSoc2013] - Outer Join
> >>> > > > To: "dev@tajo.incubator.apache.org" <
> dev@tajo.incubator.apache.org
> >>> >
> >>> > > > 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
> >>> > > > >
> >>> > > > >
> >>> > > >
> >>> > >
> >>> >
> >>>
> >>
> >>
> >
>

Re: [GSoc2013] - Outer Join

Posted by Hyunsik Choi <hy...@apache.org>.
I omitted the wiki page link in the previous post.

http://wiki.apache.org/tajo/Architecture


On Thu, Jun 13, 2013 at 6:17 PM, Hyunsik Choi <hy...@apache.org> wrote:

> Hi Camellia,
>
> I've added a wiki page which contains brief descriptions about
> TaskRunnerLaunchImpl, TaskRunnerListenerImpl, Task and TaskRunner. I hope
> that this page is useful for you.
>
> Also, PK and UNIQUE is not supported in the current implementation of
> Tajo. Now, It would be good to omit EXT 3.2. Later, if Tajo supports PK and
> UNIQUE, let's discuss that feature at that time.
>
> If you need additional documents about Tajo internals, feel free to ask me.
>
> Best regards,
> Hyunsik
>
>
>
> On Sun, Jun 9, 2013 at 8:32 PM, Hyunsik Choi <hy...@apache.org> wrote:
>
>> 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 <ca...@yahoo.com>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 <hy...@apache.org> wrote:
>>>
>>> From: Hyunsik Choi <hy...@apache.org>
>>> Subject: Re: [GSoc2013] - Outer Join
>>> To: "tajo-dev" <de...@tajo.incubator.apache.org>
>>> 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 <ca...@yahoo.com>
>>> 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 <he...@gmail.com> wrote:
>>> >
>>> > From: Henry Saputra <he...@gmail.com>
>>> > Subject: Re: [GSoc2013] - Outer Join
>>> > To: "dev@tajo.incubator.apache.org" <de...@tajo.incubator.apache.org>
>>> > 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 <hy...@apache.org>
>>> 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 <ca...@yahoo.com>
>>> > 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 <he...@gmail.com>
>>> wrote:
>>> > > >
>>> > > > From: Henry Saputra <he...@gmail.com>
>>> > > > Subject: Re: [GSoc2013] - Outer Join
>>> > > > To: "dev@tajo.incubator.apache.org" <dev@tajo.incubator.apache.org
>>> >
>>> > > > 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
>>> > > > >
>>> > > > >
>>> > > >
>>> > >
>>> >
>>>
>>
>>
>

Re: [GSoc2013] - Outer Join

Posted by Hyunsik Choi <hy...@apache.org>.
Hi Camellia,

I've added a wiki page which contains brief descriptions about
TaskRunnerLaunchImpl, TaskRunnerListenerImpl, Task and TaskRunner. I hope
that this page is useful for you.

Also, PK and UNIQUE is not supported in the current implementation of Tajo.
Now, It would be good to omit EXT 3.2. Later, if Tajo supports PK and
UNIQUE, let's discuss that feature at that time.

If you need additional documents about Tajo internals, feel free to ask me.

Best regards,
Hyunsik



On Sun, Jun 9, 2013 at 8:32 PM, Hyunsik Choi <hy...@apache.org> wrote:

> 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 <ca...@yahoo.com> 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 <hy...@apache.org> wrote:
>>
>> From: Hyunsik Choi <hy...@apache.org>
>> Subject: Re: [GSoc2013] - Outer Join
>> To: "tajo-dev" <de...@tajo.incubator.apache.org>
>> 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 <ca...@yahoo.com> 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 <he...@gmail.com> wrote:
>> >
>> > From: Henry Saputra <he...@gmail.com>
>> > Subject: Re: [GSoc2013] - Outer Join
>> > To: "dev@tajo.incubator.apache.org" <de...@tajo.incubator.apache.org>
>> > 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 <hy...@apache.org>
>> 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 <ca...@yahoo.com>
>> > 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 <he...@gmail.com> wrote:
>> > > >
>> > > > From: Henry Saputra <he...@gmail.com>
>> > > > Subject: Re: [GSoc2013] - Outer Join
>> > > > To: "dev@tajo.incubator.apache.org" <de...@tajo.incubator.apache.org>
>> > > > 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
>> > > > >
>> > > > >
>> > > >
>> > >
>> >
>>
>
>

Re: [GSoc2013] - Outer Join

Posted by Hyunsik Choi <hy...@apache.org>.
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 <ca...@yahoo.com> 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 <hy...@apache.org> wrote:
>
> From: Hyunsik Choi <hy...@apache.org>
> Subject: Re: [GSoc2013] - Outer Join
> To: "tajo-dev" <de...@tajo.incubator.apache.org>
> 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 <ca...@yahoo.com> 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 <he...@gmail.com> wrote:
> >
> > From: Henry Saputra <he...@gmail.com>
> > Subject: Re: [GSoc2013] - Outer Join
> > To: "dev@tajo.incubator.apache.org" <de...@tajo.incubator.apache.org>
> > 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 <hy...@apache.org>
> 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 <ca...@yahoo.com>
> > 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 <he...@gmail.com> wrote:
> > > >
> > > > From: Henry Saputra <he...@gmail.com>
> > > > Subject: Re: [GSoc2013] - Outer Join
> > > > To: "dev@tajo.incubator.apache.org" <de...@tajo.incubator.apache.org>
> > > > 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
> > > > >
> > > > >
> > > >
> > >
> >
>

Re: [GSoc2013] - Outer Join

Posted by camelia c <ca...@yahoo.com>.
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 <hy...@apache.org> wrote:

From: Hyunsik Choi <hy...@apache.org>
Subject: Re: [GSoc2013] - Outer Join
To: "tajo-dev" <de...@tajo.incubator.apache.org>
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 <ca...@yahoo.com> 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 <he...@gmail.com> wrote:
>
> From: Henry Saputra <he...@gmail.com>
> Subject: Re: [GSoc2013] - Outer Join
> To: "dev@tajo.incubator.apache.org" <de...@tajo.incubator.apache.org>
> 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 <hy...@apache.org> 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 <ca...@yahoo.com>
> 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 <he...@gmail.com> wrote:
> > >
> > > From: Henry Saputra <he...@gmail.com>
> > > Subject: Re: [GSoc2013] - Outer Join
> > > To: "dev@tajo.incubator.apache.org" <de...@tajo.incubator.apache.org>
> > > 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
> > > >
> > > >
> > >
> >
>