June 2025 - Conference - lists.ivorysql.org

Re: About the Postgres Conferecne in China
by GRANT ZHOU June 10, 2025

June 10, 2025

------------------------------ Dear Alvaro, Thank you so much for agreeing to come to China for the conference - this is wonderful news and I truly appreciate your commitment. I have already reserved a speaking slot specifically for you, so please take your time to prepare and submit your talk proposal when convenient. You may also consider submitting multiple proposals so our team can have options to select from. I will be in China from June 22 to July 10, and I'd love to coordinate our schedules. Here's a preliminary itinerary we're considering: - June 27-28: Main conference in Jinan - June 29: City tour of Jinan - June 30: Meeting at Highgo office - Additional time: Business meetings with the Highgo team to discuss potential future collaborations *Please note *that you *don't need to book the high-speed train* from Beijing to Jinan - we will handle that for you. We will also take care of hotel arrangements in Jinan, so *no need to book accommodations* on your end. Just let us know if the schedule works for you. Please share your travel schedule and availability so we can finalize the detailed arrangements. We can discuss the specific agenda and logistics in the coming weeks. Looking forward to seeing you in Jinan! Best regards, Grant On Thu, Jun 5, 2025 at 5:09 AM Álvaro Hernández <aht(a)ongres.com> wrote: > > Hi Grant! > > I'm almost finalized with my plans and at this point is 99% sure I can > make it to the conference :) > > Is it too late to submit one or more talks? > > > Cheers, > > Álvaro > > > -- > > Alvaro Hernandez > > > ----------- > OnGres > > > > > On 23/5/25 3:44, GRANT ZHOU wrote: > > This looks like it would be a great topic for the conference! > > https://www.pgevents.ca/events/pgconfdev2025/schedule/session/364-reproduci… > > > Any updates, my friend? Still busy coding? > > On Thu, May 15, 2025 at 10:38 AM GRANT ZH <grantzhou(a)gmail.com> wrote: > >> My pleasure, Álvaro! 😁 I'd appreciate your help with submitting talks on >> the website so we can get a sense of what to expect. >> >> All the best, >> Grant >> >> >> On May 15, 2025, at 00:18, Álvaro Hernández <aht(a)ongres.com> wrote: >> >> >> Dear Grant. >> >> I'm really honored to receive this invitation and the kind offers to >> help with the transport and the arrangements. >> >> I will hopefully be able to confirm my participation in the next >> week. I still need to plan with the family and make sure I can make it. >> >> >> I really appreciate it. Best regards, >> >> Álvaro >> >> >> -- >> >> Alvaro Hernandez >> >> >> ----------- >> OnGres >> >> >> >> >> On 15/5/25 0:04, GRANT ZHOU wrote: >> >> Dear Álvaro, >> >> I wanted to confirm the arrangements we discussed during our chat. Once >> you arrive in Beijing, we'll take care of everything else, including >> airport pickup, high-speed train tickets to Jinan, and hotel accommodation. >> If you have any personal arrangements in Beijing or other cities, you'll >> need to handle those yourself. We'll also be organizing some activities for >> small groups. >> >> All the best, >> >> Grant >> >> On Tue, May 13, 2025 at 12:56 AM GRANT ZHOU <grantzhou(a)gmail.com> wrote: >> >>> Hello Álvaro, >>> >>> It was wonderful to see you again in Montreal – I really missed >>> connecting with you! As I mentioned during the conference and at dinner, I >>> wanted to share the details about our upcoming event: >>> >>> *HOW2025 Conference* Website: *https://www.ivorysql.io >>> <https://www.ivorysql.io>* >>> >>> HOW2025 is a premier community-driven technical conference focused on >>> PostgreSQL, IvorySQL, and their broader ecosystems. This non-profit event >>> brings together industry leaders, developers, database administrators, and >>> open source enthusiasts from around the world to share knowledge, explore >>> innovations, and strengthen collaborative connections. >>> >>> Attendees will benefit from: >>> >>> - Technical presentations >>> - Hands-on tutorials >>> - Networking opportunities with leading database experts >>> >>> Our mission is to foster global connection through Open Source >>> technologies, promoting both technical excellence and community unity. We >>> welcome submissions for talks on PostgreSQL, IvorySQL, and related >>> technologies. Tutorial sessions will also be considered. >>> >>> The call for papers is still open until June 6: >>> https://sessionize.com/how2025/ >>> >>> I'd love to hear your thoughts, and I'll be there waiting for you and >>> your team. >>> >>> All the best, >>> >>> Grant >>> >> >> >

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New submission: Which Postgres are you running?
by HOW2025 June 9, 2025

June 9, 2025

Alvaro Hernandez has submitted a new session! Which Postgres are you running? You run Postgres in production. And one of the reasons is that it’s Open Source. So you can inspect the source code of what you are running, right? Right???? Maybe it’s not that obvious. Where did you get that binary from? Who compiled it? With what compiler, dependent libraries, of which versions? Where did that source code come from? Along all the supply chain, has any component been replaced by others or infected by malware? Xz anyone? If you are ready to swallow the red pill, join this session to understand that you probably don’t know which Postgres are running, and worse you are likely not able to reproduce the binary you are running. Enter the world of Postgres and reproducible builds. And SBOMs. And supply chain attacks. And hermetic builds. And all the terminology that is necessary to understand and build a truly secure and reproducible Postgres build. Last but not least, a new fully open source Postgres distribution will be presented, built after all these principles. Open session [https://sessionize.com/app/organizer/session/19661/953071] These notifications can be turned off on Edit event [https://sessionize.com/app/organizer/event/edit/19661#_tab-advanced] page. Tip: You've used Classic (confer***(a)***orysql.org) to login. You're receiving this message because you had joined event 'HOW2025' on Sessionize. Sessionize.com, PO Box 6945, Unit 34564, London W1A 6US, UK

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New submission: postges_fwd and ENUM-types
by HOW2025 June 9, 2025

June 9, 2025

Karel van der Walt has submitted a new session! postges_fwd and ENUM-types PostgreSQL offers native data virtualization in the FDW extension feature.PostgreSQL offers domain restriction via ENUM types. Composing these 2 orthogonal features requires - CREATE remote ENUM-types locally,- CREATE foreign Server This talk will demonstrate - scripting for just-in-time setup and teardown of a foreign PostgreSQL Server (e.g for IaC or CI/CD)- scripting for local provisioning of remote ENUM types Open session [https://sessionize.com/app/organizer/session/19661/953003] These notifications can be turned off on Edit event [https://sessionize.com/app/organizer/event/edit/19661#_tab-advanced] page. Tip: You've used Classic (confer***(a)***orysql.org) to login. You're receiving this message because you had joined event 'HOW2025' on Sessionize. Sessionize.com, PO Box 6945, Unit 34564, London W1A 6US, UK

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I have a question about HOW2025 Eco Conference
by Alex Lukens June 9, 2025

June 9, 2025

Hi, Nice to e-meet you. This is Alex, a former event organizer. Are you in charge of organizing HOW2025 Eco Conference? I heard of your event but I'm not sure if you are the right person to speak with. I am an event consultant at Whova, a company started by former researchers in UCSD. We provide **a mobile event app** to help organizers create successful events. Several thousands of organizers said that the mobile event app helped **save time and boost attendee engagement**. Here’s how it can help make your life a lot easier: * It **removes the hassle** (and cost) of printing agendas, directions, and even presentations. * It provides a **faster, more preferred** way for last minute changes. * Your attendees will have **an amazing networking experience** that will keep them coming back next year. * **Your sponsors love** the additional ad opportunities in the app. What if I said I could do everything above **in just 1 day**? Well, I can. Email me back to let me know if you’re interested in seeing how this can be done. I can explain more on the phone. If you are not the appropriate person to contact, who do you recommend I talk to? Best regards, Alex Lukens Whova, Inc. 10182 Telesis Ct, Ste 500 San Diego, California, USA 92121 Phone: +1-855-978-6578 ![](https://whova.co/email/open/2d9158be2b0dc41c802f89adb64d5495/) If you would like to unsubscribe and stop receiving these email, unsubscribe here by clicking: <http://email.whova.events/u/eJwsy0GO6yAMANDThGVkG-zAgsU_SWVsaJHa5E9aZTS3n80…>

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Invitation letter?
by Alena Rybakina June 9, 2025

June 9, 2025

Could you please send me invitation letter? My information: * First name: Alena * Last name: Rybakina * Nationality: Russian Federation * Date of birth: 1995/04/07 * Home address: Vasilkovskogo street, 1B, Apt. 37, Konakovo city, Tver region, 171255, Russia * Address of the China embassy in Russia: Druzhby street, 6, Moskva, Russia, 119330 * Work address: street Dmitry Ulyanov, 7A, Moscow region, Moscow, 117312 * The phone of Chine embassy: 7 (499) 951-84-43 * My cell phone number: +79610195502 * Country of residence: Russia * Full name as shown on passport: Alena Rybakina * Gender as shown on passport: female * Passport number: 762703892 * Passport issuing country: Russia * Passport expiration date: 2030/03/04 Sorry if the letter was duplicated, I was not sure that the first one was sent. My mailbox did not show that the letter was sent. -- Regards, Alena Rybakina Postgres Professional

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Re: [Sessionize Support] Monitoring PgVector RAG Agents Applications - HOW2025 - My Events - Speaker profile
by GRANT ZHOU June 9, 2025

June 9, 2025

Hello Jayita, Apologies for the delayed response. We've discussed your participation and truly appreciate your interest in joining us. Unfortunately, due to the short notice, we haven't been able to finalize our budget allocation. We can cover hotel accommodations in Jinan and high-speed train travel from Beijing, but other expenses are beyond our current budget given the strong international speaker participation. I would recommend participating remotely this time, which will be much easier for us to schedule the talk sessions. I hope you have the remote participation guidelines, but here's a quick summary: Please record a high-definition video of your presentation and send it (google drive download link) to us in advance . We'll play your recorded presentation during your scheduled time slot at the conference. If you'd like, you can also join us remotely via Zoom or VooV at the end of your session for a live Q&A with attendees. I hope you understand, and we look forward to opportunities to collaborate in the future. Best regards, Grant On Tue, Jun 3, 2025 at 2:26 PM Jayita Bhattacharyya <manijb13(a)gmail.com> wrote: > Hey Grant, > > That's super amazing, glad to hear that. Thank you so much for your > assistance here, and thanks for your utmost efforts, highly appreciated. > If this venture works out, I will definitely be more than happy to meet > and greet you in person. > > Nonetheless, please don't put too much pressure on yourself, I can totally > align with whatever the decision is, as I'm trying to be hopeful, but the > practicality side of Visa Approval is something I'm still gonna be worried > about its always 50-50 chances given the amount of traffic & minimal > timeline. The rest is on God's wish! > > On Wed, Jun 4, 2025 at 2:29 AM GRANT ZHOU <grantzhou(a)gmail.com> wrote: > >> Dear Jayita, >> >> Thank you for this information. I see that the flight to Beijing would be >> significantly more affordable. It's also good to know that you are >> currently based in Bengaluru, India. >> >> I appreciate your understanding and flexibility regarding the travel >> arrangements. I will be having a review meeting with our China team tonight >> to discuss the possibility of providing sponsorship, considering this more >> cost-effective travel option via Beijing and the subsequent high-speed >> train to Jinan. >> >> I will get back to you as soon as possible after the meeting with an >> update on our decision. >> >> Best regards, >> Grant >> >> >> On Tue, Jun 3, 2025 at 1:52 PM Jayita Bhattacharyya <manijb13(a)gmail.com> >> wrote: >> >>> Hi Grant, >>> >>> Alright, I surely see a big drop in prices for Beijing, it would be >>> roughly around 6k Chinese Yuan. >>> I'm currently based in Bengaluru, India. >>> >>> Appreciate you taking the efforts & being flexible in communicating. >>> >>> On Wed, Jun 4, 2025 at 2:11 AM GRANT ZHOU <grantzhou(a)gmail.com> wrote: >>> >>>> Hi Jayita, >>>> >>>> To help manage travel expenses, I'd like to suggest a more >>>> cost-effective travel option: you could consider booking your flight to >>>> Beijing instead of directly to Jinan, and then take the high-speed train >>>> from Beijing to Jinan. This approach often results in significantly lower >>>> airfare costs, and the high-speed train journey is quite convenient >>>> (approximately 1.5-2 hours). Additionally, the train fare would be much >>>> more affordable. >>>> >>>> Could you please check what the round-trip airfare would be to Beijing? >>>> This might give us more flexibility within our budget constraints. >>>> >>>> We appreciate your understanding and flexibility as we work to make >>>> your participation possible. >>>> >>>> ps, which city are you in? >>>> >>>> Best Regards, >>>> >>>> Grant >>>> >>>> On Tue, Jun 3, 2025 at 1:31 PM Jayita Bhattacharyya <manijb13(a)gmail.com> >>>> wrote: >>>> >>>>> Hi GRANT, >>>>> >>>>> Thank you for the response. I see that makes sense. I got it. >>>>> >>>>> A round trip would cost around 17000 Chinese Yuan & along with that, I >>>>> would also need accommodation. For a visa, I'll have to apply, it should be >>>>> easier to get a travel VISA in less time if there are proper documents and >>>>> request letters from the organising committee. >>>>> >>>>> Anyhow, I completely understand the budget planning and given a >>>>> shorter timeline, things might be difficult to arrange. >>>>> Since I always prefer an in-person interaction, as it gives more >>>>> better way to communicate and put forth my thoughts as well as take in >>>>> feedback, hence just reached out to explore the option. Happy to present >>>>> virtually as well. Thanks for inviting me. Looking forward to a great >>>>> session. >>>>> >>>>> >>>>> On Wed, Jun 4, 2025 at 1:22 AM GRANT ZHOU <grantzhou(a)gmail.com> wrote: >>>>> >>>>>> Dear Jayita, >>>>>> >>>>>> Thank you for your submission to HOW2025. We're delighted to welcome >>>>>> you to our conference in Jinan! >>>>>> >>>>>> I wanted to clarify our travel sponsorship situation. When finalizing >>>>>> our speaker lineup, particularly for international speakers, we allocated >>>>>> our travel budget based on the initial submissions. Since your presentation >>>>>> was marked as "Remote Talk" when submitted, it wasn't included in our >>>>>> sponsored travel calculations. >>>>>> >>>>>> However, we would still love to have you join us in person if >>>>>> possible. To evaluate whether we can provide travel sponsorship at this >>>>>> stage, could you please share the estimated cost of round-trip airfare to >>>>>> Jinan? This will help us assess our remaining budget and explore potential >>>>>> sponsorship options. >>>>>> >>>>>> Additionally, could you please let us know your current China visa >>>>>> status? >>>>>> >>>>>> We truly appreciate your interest in participating in person and look >>>>>> forward to hearing from you. >>>>>> >>>>>> Best regards, >>>>>> Grant >>>>>> >>>>>> On Sun, Jun 1, 2025 at 3:24 AM Jayita Bhattacharyya < >>>>>> sessionize(a)events.sessionize.com> wrote: >>>>>> >>>>>>> Hi team, >>>>>>> >>>>>>> Thank you for shortlisting my talk, I would love to come in person >>>>>>> to the event if there's provision for travel sponsorship. >>>>>>> >>>>>>> Looking forward to collaborate. >>>>>>> >>>>>>> Regards, >>>>>>> Jayita Bhattacharyya >>>>>>> Data Scientist | Tech Speaker >>>>>>> LinkedIn - https://www.linkedin.com/in/jayita-bhattacharyya >>>>>>> GitHub - https://github.com/jayita13 >>>>>>> Medium - https://itsjb13.medium.com/ >>>>>>> X (Twitter) - https://x.com/jayitabhattac11 >>>>>>> Instagram - https://www.instagram.com/jayita__b >>>>>>> >>>>>>> --- >>>>>>> Sent via Sessionize Support form by Jayita Bhattacharyya. Reply to >>>>>>> answer. >>>>>>> Page Title: Monitoring PgVector RAG Agents Applications - HOW2025 - >>>>>>> My Events - Speaker profile >>>>>>> Sender IP: 49.37.50.44 >>>>>>> >>>>>> >>>>> >>>>> -- >>>>> Thanks & Regards, >>>>> Jayita Bhattacharyya, >>>>> Data Scientist | Tech Speaker >>>>> LinkedIn - https://www.linkedin.com/in/jayita-bhattacharyya >>>>> GitHub - https://github.com/jayita13 >>>>> Medium - https://itsjb13.medium.com/ >>>>> X (Twitter) - https://x.com/jayitabhattac11 >>>>> Instagram - https://www.instagram.com/jayita__b >>>>> >>>>> >>> >>> -- >>> Thanks & Regards, >>> Jayita Bhattacharyya, >>> Data Scientist | Tech Speaker >>> LinkedIn - https://www.linkedin.com/in/jayita-bhattacharyya >>> GitHub - https://github.com/jayita13 >>> Medium - https://itsjb13.medium.com/ >>> X (Twitter) - https://x.com/jayitabhattac11 >>> Instagram - https://www.instagram.com/jayita__b >>> >>> > > -- > Thanks & Regards, > Jayita Bhattacharyya, > Data Scientist | Tech Speaker > LinkedIn - https://www.linkedin.com/in/jayita-bhattacharyya > GitHub - https://github.com/jayita13 > Medium - https://itsjb13.medium.com/ > X (Twitter) - https://x.com/jayitabhattac11 > Instagram - https://www.instagram.com/jayita__b > >

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Re: Presentation Template for Conference - Action Required
by GRANT ZHOU June 9, 2025

June 9, 2025

Dear Wagner, Sorry we cannot see you in China this time, I am looking forward to seeing you at a future event. I hope you have already got the remote participation quick guides: Please record a high-definition video of your presentation and send it to us in advance. We'll play your recorded presentation during your scheduled time slot at the conference. If you'd like, you can also join us remotely via Zoom or VooV at the end of your session for a live Q&A with attendees. Feel free to reach out if you have any questions about the process. Welcome to HOW2025. Best regards, Grant On Fri, Jun 6, 2025 at 6:07 AM Wagner Bianchi <bianchi(a)readyset.io> wrote: > Hello Guys, > > Thank you very much for approving my submitted presentation/paper, but > unfortunately, I won't be able to make it. > > We will keep in touch, as I am watching it closely and would like to be > present sooner! > > > On Thu, Jun 5, 2025 at 10:39 PM HOW2025 <how2025(a)events.sessionize.com> > wrote: > >> Dear Speakers, >> >> I hope this email finds you well. >> >> As we approach the conference date, we are excited to have you as one of >> our distinguished speakers. To ensure consistency and professional >> presentation standards across all sessions, we have prepared an official >> presentation template for the conference. >> >> Please find the presentation template attached to this email. We kindly >> request that all speakers use this template for their presentations. >> >> Additional Support Available: >> >> If you require assistance with adding Chinese text or translations to >> your PowerPoint presentation, our conference team is ready to help. Please >> contact our conference coordination team at Conference(a)ivorysql.org and >> we will arrange the necessary support to accommodate your needs. >> >> We want to ensure that all speakers have the resources they need to >> deliver outstanding presentations. Please don't hesitate to reach out if >> you have any questions or require any clarification regarding the template >> or presentation requirements. >> >> Thank you for your cooperation, and we look forward to your valuable >> contribution to the conference. >> >> Best regards, >> >> Conference Organization Team >> >> Email: conference(a)ivorysql.org >> >> Tip: You've used Google (bian***(a)***adyset.io) to login. >> >> You're receiving this message because you had joined event 'HOW2025' on >> Sessionize. >> >> Sessionize.com, PO Box 6945, Unit 34564, London W1A 6US, UK >> > > > -- > Wagner Bianchi - Solutions Architect @ Readyset.io > E-mail: bianchi(a)readyset.io > Website: readyset.io > Demo: readyset.cloud >

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ivorysql
by Thomas Liu June 7, 2025

June 7, 2025

(If you are NOT CEO, please kindly forward this to your CEO, because this is urgent. If you believe this has been sent to you in error, please ignore it. Thanks)Dear CEO,This email is from China domain name registration center, which mainly deal with the domain name registration in Shanghai, China. We received an application from Jiahai Ltd on June 7, 2025. They want to register "ivorysql" as their internet keyword and China (CN) domain names (ivorysql.cn, ivorysql.com.cn, ivorysql.net.cn, ivorysql.org.cn). But after checking it, we find this name conflict with your company name or trademark. In order to deal with this matter better, it's necessary to send email to you and confirm whether this company is your business partner in China? Best regardsThomas Liu General Manager Domain Registry Tel: +86-2161918696 Fax: +86-2161918697 Mob: +86-13816428671 12F Kaike Building, No. 1801 Hongmei Road, Shanghai 200233, China

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HOW2025: Call for Speakers closed!
by Sessionize.com June 6, 2025

June 6, 2025

Hello, That was it! Call for Speakers for your HOW2025 event is now closed and session submissions are not possible. For late or celebrity speakers, you can use the "secret" link https://sessionize.com/how2025/?e=2dc186 [https://sessionize.com/how2025/?e=2dc186] And of course, you can always extend the Call for Papers by editing your event properties. 23 sessions have been submitted. Open your event [https://sessionize.com/app/organizer/event/19661] For next steps please consult our Smart Task List at the link above. Have fun choosing the best sessions for your event! Sessionize.com Tip: You've used Classic (confer***(a)***orysql.org) to login. You're receiving this message because you had joined event 'HOW2025' on Sessionize. Sessionize.com, PO Box 6945, Unit 34564, London W1A 6US, UK

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New submission: PostgreSQL Optimizer Flaws: Real Stories and How We Fix Them
by HOW2025 June 6, 2025

June 6, 2025

Alena Rybakina has submitted a new session! PostgreSQL Optimizer Flaws: Real Stories and How We Fix Them The PostgreSQL optimizer usually does a solid job producing efficient query plans. But sometimes, it underestimates cardinality or misjudges query structure, leading to seriously inefficient plans and blown-out execution times. In this talk, we'll dive into some of the most unusual and surprising real-world cases where the optimizer got it wrong. We'll analyze the root causes behind these failures and walk you through how we tackled them — from the initial idea to real feature implementations like "OR-to-ANY Transformation" [0], "VALUES-to-ANY Transformation"[1], Replanning [2], and smart extensions like AQO [3], Switch Join [4], and more. You'll leave with a better understanding of how the optimizer works and where its weak spots are - plus fresh ideas on how to outsmart it. [0] https://github.com/postgres/postgres/commit/d4378c0005e61b1bb78e88097ea6efc… [https://github.com/postgres/postgres/commit/d4378c0005e61b1bb78e88097ea6efc…] [1] https://github.com/postgres/postgres/commit/c0962a113d1f2f94cb7222a7ca025a6… [https://github.com/postgres/postgres/commit/c0962a113d1f2f94cb7222a7ca025a6…] [2] https://habr.com/ru/companies/postgrespro/articles/819911/ [https://habr.com/ru/companies/postgrespro/articles/819911/] [3] https://www.pgevents.ca/events/pgconfdev2024/schedule/session/147-adaptive-… [https://www.pgevents.ca/events/pgconfdev2024/schedule/session/147-adaptive-…] [4] https://www.pgevents.ca/events/pgconfdev2025/callforpapers/346/ [https://www.pgevents.ca/events/pgconfdev2025/callforpapers/346/] Open session [https://sessionize.com/app/organizer/session/19661/950406] These notifications can be turned off on Edit event [https://sessionize.com/app/organizer/event/edit/19661#_tab-advanced] page. Tip: You've used Classic (confer***(a)***orysql.org) to login. You're receiving this message because you had joined event 'HOW2025' on Sessionize. Sessionize.com, PO Box 6945, Unit 34564, London W1A 6US, UK

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