Tejas, Thank you. I'll continue to write additional descriptions :)
On Thu, Jun 13, 2013 at 6:22 PM, Tejas Patil <[email protected]>wrote: > This is awesome Hyunsik .. very helpful for newbies like me. Keep adding :) > > > On Thu, Jun 13, 2013 at 2:18 AM, Hyunsik Choi <[email protected]> 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 <[email protected]> > 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 <[email protected]> > 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 <[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 > > >>> > > > > > > >>> > > > > > > >>> > > > > > >>> > > > > >>> > > > >>> > > >> > > >> > > > > > >
