Since we have so many talks, I’m happy to remove myself from the agenda to give others more time. I can give my talk at a later meetup.
I would favor giving Mihai more than twenty minutes. There is a lot of depth to his work - he won best paper at VLDB last year - and much for us all to learn. > On Jan 15, 2025, at 3:45 PM, Mihai Budiu <[email protected]> wrote: > > Hello. > > I guess the time is fixed at 20 minutes now. My talk needs a fair amount of > background, so it won't fit easily (depending on whether I can assume people > have seen my previous meetup/CoC presentations). > > Here is my abstract: > > Streaming, incremental, finite-memory computations in SQL over > unbounded streams > > SQL is the standard language for expressing computations on > collections. Using modern incremental view maintenance techniques, > SQL can also be adopted as the standard language for computing on > *changes* to collections. In previous presentations we have shown how > to automatically convert any SQL program that defines views into an > *incremental* program: the inputs of an incremental program are > insertions, deletions, and updates to data tables, and the outputs of > the incremental program are insertions, deletions, and updates of the > maintained views. > > Whereas SQL queries are stateless systems, the incremental programs > are stateful streaming systems that maintain complex *indexes* for > performing efficient updates. The indexes enable computing all > updates in time proportional to the size of the changes. > > In this presentation we discuss the problem of computing over data > that grows unbounded (e.g., event streams), leading to potentially > unbounded indexes. We present the design and implementation of a > fully automatic mechanism which enables many such computations to use > only finite memory by garbage-collecting the indexes at runtime. The > mechanism requires users to specify bounds on the amount of > "out-of-orderness" of the input data, using annotations on input > tables. > > Thank you for organizing this! > Mihai > > > > ________________________________ > From: Stamatis Zampetakis <[email protected]> > Sent: Wednesday, January 15, 2025 7:29 AM > To: [email protected] <[email protected]> > Subject: Re: [DISCUSS] Apache Calcite Meetup February 2025 > > I can also give a talk based on some recent work that we did in Apache > Hive around CTEs. > > With Walaa's and mine we now have five talks for the meetup. > > 1. Improving testing of JDBC adapter's dialects - Julian Hyde (Google) > 2. Federated Query Planning w/ Substrait - Victor Barua (Datadog) > 3. Combining streaming and incremental computation in SQL - Mihai > Budiu (Feldera) > 4. Revolutionizing Data Lakes: A Dive into Coral, the SQL Translation, > Analysis, and Rewrite Engine - Walaa Eldin Moustafa (LinkedIn) > 5. Optimizing Common Table Expressions in Apache Hive with Calcite - > Stamatis Zampetakis (Cloudera) > > It would be nice to keep the duration of each talk around 20 minutes > so that we finish with the presentations in ~2hrs. If more or less > time is needed for some talks we can adapt. > > I now created the event on meetup [1] based on the information that I > have so far. It would be nice to fill in the description/abstract part > for each talk so please share the necessary details when you get a > chance. > > Best, > Stamatis > > [1] https://www.meetup.com/apache-calcite/events/305627349 > >> On Fri, Jan 10, 2025 at 8:16 PM Walaa Eldin Moustafa >> <[email protected]> wrote: >> >> That is a great idea. I would love to join in person as well. I can talk >> about Coral [1]. >> >> Revolutionizing Data Lakes: A Dive into Coral, the SQL Translation, >> Analysis, and Rewrite Engine. >> >> [1] https://github.com/linkedin/coral >> >> Thanks, >> Walaa. >> >> >> On Fri, Jan 10, 2025 at 11:05 AM Stamatis Zampetakis <[email protected]> >> wrote: >> >>> I now have some more clarity regarding the physical venue of the >>> meetup. It will be held in Cloudera's offices in Santa Clara, >>> California. More details will come over the next few weeks. >>> >>> Cloudera is also going to help with promoting the event to various >>> channels and other meetup groups. >>> >>> Now with Mihai's proposal we have three topics for the meetup: >>> * Improving testing of our JDBC adapter's dialects >>> * Federated Query Planning w/ Substrait >>> * Combining streaming and incremental computation in SQL >>> >>> In order to put up the agenda and publish the event to a wider >>> audience we need the title, abstract, and expected duration for each >>> talk. The sooner we publish the event the better it will be for people >>> who would like to join. >>> >>> Best, >>> Stamatis >>> >>> >>> >>> On Fri, Jan 3, 2025 at 9:02 PM Mihai Budiu <[email protected]> wrote: >>>> >>>> I can give a talk about combining streaming and incremental computation >>> in SQL. >>>> >>>> Mihai >>>> >>>> ________________________________ >>>> From: Stamatis Zampetakis <[email protected]> >>>> Sent: Thursday, January 2, 2025 2:22 AM >>>> To: [email protected] <[email protected]> >>>> Subject: Re: [DISCUSS] Apache Calcite Meetup February 2025 >>>> >>>> So far we have two topics: >>>> * Improving testing of our JDBC adapter's dialects >>>> * Federated Query Planning w/ Substrait >>>> >>>> Both of them would be quite interesting and relevant for the meetup. >>>> >>>> For people who are willing to give a talk, please share the title, >>>> abstract, and expected duration as soon as possible. Given that >>>> February is not too far away, I would like to put up a tentative >>>> agenda on meetup [1] so that people who don't follow the dev list can >>>> arrange their schedules for the event. >>>> >>>> Best, >>>> Stamatis >>>> >>>> [1] https://www.meetup.com/Apache-Calcite/ >>>> >>>> On Tue, Dec 31, 2024 at 9:00 PM Victor Barua >>>> <[email protected]> wrote: >>>>> >>>>> If folks are interested, I could give a talk along the lines of >>> "Federated >>>>> Query Planning w/ Substrait" which would be about how we're using >>> Isthmus >>>>> <https://github.com/substrait-io/substrait-java/tree/main/isthmus>, >>> the >>>>> Substrait <https://substrait.io/> <-> Calcite bridge, to be able to >>> use >>>>> Calcite as a query planner for our distributed execution system. >>>>> >>>>> On Tue, 24 Dec 2024 at 03:38, Ruben Q L <[email protected]> wrote: >>>>> >>>>>> Great idea, Stamatis! >>>>>> I'll do my best to try to participate remotely. >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> On Tue, Dec 24, 2024 at 10:21 AM Stamatis Zampetakis < >>> [email protected]> >>>>>> wrote: >>>>>> >>>>>>> Regarding the time it will be difficult to find a slot that is >>>>>>> suitable for everyone worldwide. I proposed 5pm PST to facilitate >>>>>>> those that will participate in person. >>>>>>> >>>>>>> If there are people interested in giving a talk in other regions >>> and >>>>>>> the timing does not work for them then we can try to see if there >>> is >>>>>>> another option that could accommodate those. Please let me know if >>>>>>> that's the case. >>>>>>> >>>>>>> Best, >>>>>>> Stamatis >>>>>>> >>>>>>> On Mon, Dec 23, 2024 at 7:58 PM Julian Hyde <[email protected]> >>> wrote: >>>>>>>> >>>>>>>> Excellent idea. I'm always happy to give a talk about Calcite, >>> and >>>>>>>> could travel to Santa Clara in person. One possible topic is >>>>>>>> "Improving testing of our JDBC adapter's dialects". >>>>>>>> >>>>>>>> On Mon, Dec 23, 2024 at 9:46 AM Mihai Budiu <[email protected]> >>> wrote: >>>>>>>>> >>>>>>>>> Great idea, I would participate in person or in the hybrid >>> format. >>>>>>>>> >>>>>>>>> Mihai >>>>>>>>> >>>>>>>>> ________________________________ >>>>>>>>> From: Stamatis Zampetakis <[email protected]> >>>>>>>>> Sent: Monday, December 23, 2024 12:47 AM >>>>>>>>> To: [email protected] <[email protected]> >>>>>>>>> Subject: [DISCUSS] Apache Calcite Meetup February 2025 >>>>>>>>> >>>>>>>>> Hi all, >>>>>>>>> >>>>>>>>> It's been quite a while since our last meetup [1, 2] so I was >>>>>> thinking >>>>>>>>> it may be a good idea to organize one around the beginning of >>> 2025. >>>>>>>>> >>>>>>>>> I am considering the possibility of a hybrid event with few >>>>>>>>> presentations followed by open discussion and socializing. In >>> terms >>>>>> of >>>>>>>>> location, I am discussing something around Santa Clara, >>> California. >>>>>>>>> For those who cannot attend physically, we will use zoom or >>> another >>>>>>>>> app so that people can participate remotely. >>>>>>>>> >>>>>>>>> The tentative date that I have in mind is Thursday, 20 >>> February, >>>>>>>>> 5:00pm PST but nothing is fixed and we can adapt to >>> accommodate more >>>>>>>>> people. >>>>>>>>> >>>>>>>>> I created a small anonymous google form [3] to see if there is >>> enough >>>>>>>>> interest to hold an event on the proposed date and if it is >>> worth >>>>>>>>> organising a hybrid event instead of a fully virtual one. >>> Please take >>>>>>>>> a few seconds to submit your responses. >>>>>>>>> >>>>>>>>> Are there people willing to give a talk around Calcite? >>>>>>>>> >>>>>>>>> Best, >>>>>>>>> Stamatis >>>>>>>>> >>>>>>>>> [1] https://www.meetup.com/Apache-Calcite/ >>>>>>>>> [2] >>> https://lists.apache.org/thread/8vbdtbjxt9zx4k93dof085yj3v5z820s >>>>>>>>> [3] https://forms.gle/iuAB6hoDHuLdy3BC7 >>>>>>> >>>>>> >>>
