SQL

Dear All, The event this week is on again this Wednesday. It will be once again in the Reval cafe which is on Müürivahe Street in the Old town. We will practice some conversation and review vocabulary on a specific topic See you there and don't forget to bring your notebook and pen! Nabil

🎮 Even though it is not an event held by us, we're thrilled by the fantastic board game nights and the vibrant gaming community of Yo Mana! With an impressive collection of **100+ board games and access to game consoles like PS5, PS4, and Nintendo Switch**, this is a gaming paradise. 💰 To support the community and help cover the rent, there's a **5€ participation fee**. It would be the easiest for you to bring it in cash. Trust us, it is a modest fee considering the hours of enjoyment and the variety of games at your disposal. 📅 **Check out their [website](www.yomana.ee)**! They have a Discord channel and many other events happening. Just scroll down on the website to see the calendar. Also also, there's a recurring [Facebook event](https://facebook.com/events/s/wednesday-board-games-yo-mana-/967419134491734/) for these Wednesdays. **💬** Because **we're not the organizers of these events**, for any specific inquiries or additional information please reach out to Yo Mana through the contacts on their website.

Join us in Tallinn on **July 2nd at 18:00** for our next meetup, hosted by [Entigo](https://www.entigo.com/)! This time, we will explore the ins and outs of building and managing your own PostgreSQL setup, guided by two amazing speakers. We are going to explore building/managing own PostgreSQL setup with help of two amazing speakers. [Henrietta (Hettie) Dombrovskaya](https://www.linkedin.com/in/henrietta-dombrovskaya-367b26/) **Making Access Control Management Easy: Introducing pg_acm** PostgreSQL does not have any prescribed guidelines for the use of schemas, also called namespaces. A namespace is just one of many attributes of an object, whether an object is a table, a view, a function, or any other object type available in PostgreSQL. One of the common reasons for using schemas is to simplify access control management. The idea is straightforward: all objects within one schema should have identical access privileges. As simple as it sounds, the practical implementation of this approach can quickly turn into an operational nightmare unless all participants agree to follow a set of rules that are difficult to enforce. That is, unless you use pg_acm: an access control management tool for PostgreSQL, which we are going to introduce in this talk. The only thing you need to do is to define an access management policy for your database. Once it is defined, a CREATE SCHEMA command will invoke the creation of a set of event triggers and roles. All of them, working together, will ensure your access policy enforcement. No more accidental grants to PUBLIC. No more mysterious “permission denied” errors. You are in control. [Martin Vool](https://www.linkedin.com/in/martin-vool-86436018b/) **How Hard Can a Simple Kubernetes PostgreSQL Self-Service Be?** "How hard can it be?" We thought building a simple self-service was easy: let developers order a PostgreSQL instance, its databases, and users straight from the Kubernetes API, without caring which cloud runs underneath. Using managed services like AWS RDS behind a clean Crossplane-based interface, the first prototype came together fast and then day 2 arrived. This talk is a field report on everything between "it works!" and production: Kubernetes finalizers and RDS deletion protection that trap objects in limbo, backups you can only restore into a brand-new instance, and the day a user deleted an entire namespace and took our teardown logic with it. Along the way we leaned on Kyverno policies as duct tape and an upstream PR still stuck in review. If you build self-service infrastructure on Kubernetes or just enjoy other people's operational scar tissue you'll leave with concrete patterns and a healthy respect for the word "simple." **Additionally:** * **A Word from Our Host:** A brief welcome from the team hosting us. * **Lightning Talks:** Have a topic or idea? Let the organizers know if you'd like to present! * **Hallway Track:** Enjoy a cozy and practical space for networking and conversations between presentations. **Organizational Details:** * **Check-in:** There will be a secondary RSVP at the doors (Entigo will act as the data controller). * **Parking:** Free parking is available behind the building. * **Recording:** We are planning to record the event on video and will share more details once they are finalized. Looking forward to seeing you there!

👋 **Host** (text/call if you can't find the group) * Alisa +372 560 49 272 (call) / +972 585 77 45 37 (WA text) Love languages? 👅 Want to practice speaking? Come to our meetup! *How does it work? Simple!* 👉 Make a name tag with your name and languages that you speak/learn! 👉 Look for someone who has a language you want to practice - and strike a conversation! *Important:* * **Be comfortable to "eavesdrop"** **on a conversation** in a fascinating language you are not ready to speak yet - "I just want to listen" is a thing! ☝😎 * If someone joins you with this intention - **don't switch to English** (as you normally would, because you don't want to exclude your friend from a conversation!) - but in this setting - **keep talking!** You are giving others an opportunity to listen! 😁👂 Well, this is it... we are looking forward to seeing you on Friday! Let's discover unexpected language matches together! 🤩 📸Disclaimer: The host may take photos during the event for promotion purposes. If you do not agree with this, please inform the host directly at the beginning of the meetup, otherwise it will be understood as consent. ✅**Please RSVP** so that we could take your participation into account. Let the hosts know if you happen to be late. Invite friends and family who share your love for books and languages! *** 📲 **Keep up with all of our events!** Join our [WhatsApp chat](https://chat.whatsapp.com/LXpfN4kY6H87vN5noPOryc), ask us for an invitation to the Facebook chat or follow us on social media. 🗓️ **We have meetups happening every day** of the week! From in-depth discussions to relaxed evenings and fun-filled weekends. Explore our full event calendar[ here](https://www.meetup.com/daily-meetups/events/calendar/). Hope to see you soon! 💬 Wish to **join hosting**, have questions or something to report? Don't hesitate to get in touch with the community manager: * Dalisa Cisneros / Daily Meetups (Facebook) * meetupsdaily@gmail.com * @dailymeetups (Instagram)

To all locals, expats, and visitors in Tallinn, welcome! My wife and I are delighted to invite you to study the Word of God with us every Friday at 6:30 p.m. in a casual setting, accompanied by coffee and tea. We believe the Bible is entirely true, and we strive to live by its teachings. We also believe that the love of God is so powerful that it can touch hearts and heal what's broken in all of us. Let's study Christianity together to help you find answers to questions like: \*What is the meaning of life? * How do I deal with difficult situations * Who is God, and what is the Trinity? * How can Jesus Christ help me? * How can I forgive and treat others with love? Please join us or reach out if you have any questions! The meetups are in English.

Hi! This time we are planning to hike on the trail where we can see 6 lakes, different landscape and enjoy our wonderful company. Meeting point: https://share.google/oNBH5scHS6DXa2Qy8 Meeting time: 12:00 All the best! Maria

Dear All, The time has come to announce our next event This time we will return to the beautiful Old.Town, the very heart of it. The well-respected cafe Kehrwieder will host us again. As the weather should be good we will once again sit outside in the backyard garden area. The cafe is highly rated and was voted best cafe in Tallinn some time sgo. You are most welcome to join us. Look forward to your participation! Nabil

Join us for a feel-good **45-minute barre-inspired beach workout** designed to strengthen, tone, and energise your whole body 🌞 Expect a full-body burn with a mix of barre-inspired movement, booty burners, core activation, balance work, and low-impact strength exercises — all set against the beautiful backdrop of Pirita Beach. This class is all about moving together, enjoying nature, and feeling good in your body. We’ll breathe fresh air, soak up the beach vibes, and build strength in a supportive and welcoming environment. ✨ All levels welcome ✨ Bring your own mat ✨ Donation based — pay as you wish ✨ Come solo or with friends ✨ Meet new people & enjoy the community vibe Whether you’re trying barre for the first time or already love a good burn, this class is for anyone wanting to move, connect, and get stronger together 💛

**Remote work isn’t a dream. It’s a plan.** And if you want it to happen, you need more than a LinkedIn post. **Nomad Summit: Remote Work Edition** is your launchpad to landing a remote job — with real tools, real people, and real opportunities. 🗓️ July 3\-5\, 2026 \| Tallinn\, Estonia *In partnership with Remote Work Europe* • Talks that matter — from remote founders and professionals • Hands-on workshops to build skills and confidence This weekend could change your career. 🚨 **Important:** Filling out this form does *not* count as registering for the event. **You must purchase a ticket at nomadsummit.com/tallinn-2026 to attend.**

**Latest Dojo Location!** **Knotty Pine Brewing** 1765 W 3rd Ave, Columbus, OH 43212 We're going to try a new dojo location for a few weeks and see how it works Dojos are informal Python group study sessions where everyone interested in Python gathers to learn about Python, help others with Python, or just hang out. Everyone is welcome from Python beginners to experts. Bringing a laptop is encouraged (we'll have extension cords and power strips). If there's something you want to learn leave a comment on this invite so we can plan ahead. We're looking for speakers for our Monthly Meetups! Fill out the form if you are interested in presenting to the Python Community. https://forms.gle/ehSfUAC2WgR34Crq9

Dear Illinois Prairie PUG members, Thank you to everyone who attended PG DATA 2026! The conference is over, but our meetups are back, and more Postgres content is coming! Those of you who attended our May meetup are already familiar with our new (hopefully permanent) location. For others, please note that we will meet at **Chicago Innovations, 1 W. Monroe**. This time, we are trying a two-talk format. \- Zach Paden will present the talk **Declarative schema management with pgschema.** \- Anna Bailliekove will present the talk **PostGIS Quick Start** More details on talks and speakers coming soon! *Agenda* 5:20 - doors open 5:30 - pizza arrives 6:00 - 6:10 - Hettie D. Opening remarks 6:10- 6:40 - Zach. Declarative schema management with pgschema. 6:45 - 7:10 Anna: PostGIS Quick Start 7:10 - 7:50 - Open discussion and networking 7:50 - 8:00 - Cleanup time and closing **Speaker**: Zach Paden Zach Paden is a tech lead at Symetra with experience ranging from scrappy startups, consulting, to large regulated enterprises. His work spans data platform, analytics and application development where he’s seen more than his fair share of projects get bogged down or catch on fire due to their schema management practices. **Talk Title:** *Declarative schema management with pgschema* **Talk description** Lots of app devs struggle to understand the concept of versioning database migrations, and managing the history of these migrations can become difficult even with existing tools. Using pgschema you can write pure-sql decoratively and let pgschema derive a series of valid online migrations. **Speaker:** Anna Bailliekova Anna Bailliekova has been moving data around professionally for 15 years. Currently a staff engineer XeoMatrix, she focuses on helping organizations mature their data engineering practice, optimization problems, and geospatial data applications. **Talk title:** PostGIS Quick Start **Talk description** PostgreSQL provides rich support for geospatial computing; using transportation examples, we will take a brief tour of these features for those who want to but have been scared to try. *Notes about our new venue*. I am delighted to have an independent venue for the first time since I am hosting the meetups. I hope that this will be our permanent home. And as you all know, with more freedom comes more responsibilities. \- You will notice the change in the RSVP form\. \- We are thankful to our hosts and promise to be responsible\. \- We comply with the [PostgreSQL Code of Conduct](https://www.postgresql.org/about/policies/coc/). \- We do not want to waste food\, so please indicate your dietary preferences\. \- We will not close RSVPs on the morning of the meetup\, but please do your best to RSVP in advance so we can order the appropriate amount of food and drinks\. \- We want to start offering **on-site daycare**. If you indicate on your RSVP that you are planning to use daycare, we will contact you closer to the event with more information. This meetup will be hybrid - please don't forget to indicate whether you are attending in-person or virtually. Thank you, and I look forward to seeing you all at our new location! Hettie Dombrovskaya Illinois Prarier PUG Organizer

Our monthly PHP meetup. A virtual shindig courtesy of Zoom. Check back here for the details around 6:15 pm

**Presenter:** Matthew Hess, Microsoft MVP **Time:** Pizza at 6:00, Presentation Starts at 6:30pm Eastern **Location:** Theoris, 9000 Keystone Crossing, Either Downstairs or in Suite 230 if main meeting room isn't available, Indianapolis In 2019 (C# 8.0) Microsoft introduced a feature that has generated a lot of confusion, debate and outright dissent. I'm talking about Nullable Reference Types. In this presentation, I we dig into this feature, explore why it exists, what problem it tries to solve, how it works, and how people have critiqued it, so that you as a programmer can decide if and how you want to use it. Looking forward to seeing you there!

💖 𝐌𝐚𝐫𝐫𝐢𝐚𝐠𝐞-𝐌𝐢𝐧𝐝𝐞𝐝 𝐒𝐢𝐧𝐠𝐥𝐞𝐬 💖 𝐁𝐞𝐠𝐢𝐧𝐧𝐞𝐫 𝐁𝐚𝐜𝐡𝐚𝐭𝐚 𝐃𝐚𝐧𝐜𝐞 𝐂𝐥𝐚𝐬𝐬! 𝐒𝐮𝐧𝐝𝐚𝐲, 𝐉𝐮𝐥𝐲 𝟏𝟗, 𝟐𝟎𝟐𝟔 𝟕 𝐩𝐦 – 𝟗 𝐩𝐦 𝐀𝐠𝐞𝐬 𝟐𝟓-𝟒𝟎 💖 𝐓𝐡𝐞 𝐋𝐨𝐯𝐞 𝐨𝐟 𝐘𝐨𝐮𝐫 𝐋𝐢𝐟𝐞 𝐂𝐨𝐮𝐥𝐝 𝐁𝐞 💖 𝐉𝐮𝐬𝐭 𝐎𝐧𝐞 𝐃𝐚𝐧𝐜𝐞 𝐀𝐰𝐚𝐲! 👉 Are you tired of wasting time on people who aren’t serious? 👉 Are you all swiped-left and swiped-right out? 👉 Are you tired of false starts and situationships? If you answered yes to any of the above, then this event was created with YOU in mind! 𝐃𝐨𝐧’𝐭 𝐦𝐢𝐬𝐬 𝐭𝐡𝐢𝐬 𝐅𝐔𝐍 𝐨𝐩𝐩𝐨𝐫𝐭𝐮𝐧𝐢𝐭𝐲 𝐭𝐨 𝐦𝐞𝐞𝐭 𝐢𝐧𝐭𝐞𝐧𝐭𝐢𝐨𝐧𝐚𝐥 𝐩𝐞𝐨𝐩𝐥𝐞, 𝐦𝐚𝐤𝐞 𝐧𝐞𝐰 𝐟𝐫𝐢𝐞𝐧𝐝𝐬, 𝐠𝐞𝐭 𝐲𝐨𝐮𝐫 𝐝𝐚𝐧𝐜𝐞 𝐨𝐧, 𝐛𝐮𝐫𝐧 𝐬𝐨𝐦𝐞 𝐜𝐚𝐥𝐨𝐫𝐢𝐞𝐬, 𝐚𝐧𝐝 𝐦𝐚𝐲𝐛𝐞 𝐞𝐯𝐞𝐧 𝐦𝐞𝐞𝐭 “𝐲𝐨𝐮𝐫 𝐩𝐞𝐫𝐬𝐨𝐧!” The dance class is for BEGINNERS, so therefore no dance experience is required or expected! If you do have experience dancing bachata, then we won’t hold that against you, either! 😂 We will be rotating partners CONTINUOUSLY, so you will have the opportunity to meet and converse with everyone! 𝐓𝐡𝐢𝐬 𝐨𝐧𝐞-𝐨𝐟-𝐚-𝐤𝐢𝐧𝐝, 𝐁𝐞𝐭𝐭𝐞𝐫-𝐓𝐡𝐚𝐧-𝐒𝐩𝐞𝐞𝐝-𝐃𝐚𝐭𝐢𝐧𝐠 𝐞𝐯𝐞𝐧𝐭 𝐰𝐢𝐥𝐥 𝐜𝐨𝐧𝐬𝐢𝐬𝐭 𝐨𝐟: ✅1. Registration and Meet-And-Greet ✅2. Beginner Bachata Dance Class ✅3. Dance Practice and Mutual Matching 𝐑𝐄𝐆𝐈𝐒𝐓𝐑𝐀𝐓𝐈𝐎𝐍 𝐈𝐒 𝐑𝐄𝐐𝐔𝐈𝐑𝐄𝐃! 👉𝐕𝐢𝐬𝐢𝐭 𝐭𝐡𝐞 𝐥𝐢𝐧𝐤 𝐛𝐞𝐥𝐨𝐰 𝐭𝐨 𝐫𝐞𝐠𝐢𝐬𝐭er: MarriageMindedSinglesDance.com Questions? Text Todd Smith 614-774-8146

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** *July Meeting - Lightning Talks!* Lightning talks are very short presentations on a topic of your choice (must be related to .NET). Talks should be 15-20 minutes in length and include minimal slides and quick demo (no live coding please). There will be 6 slots available! First come, first serve! **YouTube Link** TBD

Most people use LLMs by feel: ask a question, read the answer, decide whether it “seems good,” and move on. That works for casual use. It does not work when you are building software, automating workflows, writing important documents, or relying on AI for anything that needs to be repeatable. In this talk, we’ll look at how to improve and evaluate the inputs and outputs of LLMs using practical measurement techniques. We’ll cover how prompt changes affect results, how to compare outputs, how to build simple evaluation sets, and how math-based methods like similarity scoring can help you move beyond guesswork. This will be beginner-friendly, so even if you don't know anything about AI, you should get something out of it. However, this will be a little more technical than our intro talks. You do not need to be an AI researcher, but programmers and technically curious attendees will get a lot out of it. We’ll cover: * Why “it looks good” is not enough * How to improve prompts by changing the input, context, and constraints * How to compare LLM outputs more systematically * Basic evaluation techniques for accuracy, consistency, and usefulness * How embeddings, cosine similarity, and scoring can help evaluate results * Where automated evaluation works — and where humans still need to stay in the loop By the end, you’ll have a practical mental model for treating LLMs less like magic and more like systems you can test, measure, and improve. LOGISTICS AND PARKING: The talk starts at 7:00 PM. The first half hour is reserved for everyone to get set up and mingle. Free pizza and drinks! The cheapest parking option is to find street parking, which will only cost you a few bucks. Otherwise, park in the nearby veteran's museum lot for $8. It's highly recommended you avoid the nearby $15 garage parking.