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Tomas Vondra

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DimunDimunDětský certifikát se bude týkat desítek tisíc případů, varuje profesor Tomáš GřivnaCelá epizoda: https://www.info.cz/podcasty/dimun/detsky-certifikat-se-bude-tykat-desitek-tisic-pripadu-varuje-profesor-tomas-grivna👤 Host: profesor Tomáš Gřivna, vedoucí katedry trestního práva Právnické fakulty Univerzity Karlovy a zároveň advokát, který velmi často obhajuje v mediálně sledovaných případechProč považuje návrh nového trestného činu neoprávněné činnosti pro cizí moc za gumový? Proč varuje před návrhem šéfa BIS Michala Koudelky, aby mohly být informace tajných služeb použity jako důkaz u soudu? A proč je podle něho potřeba zásadnější změna trestního zákona?SLEDUJ NA...2025-04-1737 minPostgres FMPostgres FMPerformance cliffsNikolay and Michael are joined by Tomas Vondra to discuss single query performance cliffs — what they are, why they happen, some things we can do to make them less likely or less severe, and some potential improvements to Postgres that could help. Here are some links to things they mentioned:Tomas Vondra https://postgres.fm/people/tomas-vondraWhere do performance cliffs come from? (Talk by Tomas) https://www.youtube.com/watch?v=UzdAelm-QSYWhere do performance cliffs come from? (Slides) https://vondra.me/pdf/performance-cliffs-posette-2024.pdfIncrease the number of fast-path lock slots (committed for Postgres 18) https://www.postgresql.org...2025-04-0438 minInfoTalksInfoTalksTrumpův obrat zády k Evropě znamená, že musíme posilovat vztahy s Německem, říká Tomáš JelínekCelá epizoda bez reklam na INFO.CZ https://www.info.cz/podcasty/livestreamy/trumpuv-obrat-zady-k-evrope-znamena-ze-musime-posilovat-vztahy-s-nemeckem-rika-tomas-jelinek👤 Host: Tomáš Jelínek, ředitel Česko-německého fondu budoucnosti (ČNFB)„Česko-německé vztahy se po vyrovnání s minulostí normalizovaly, což však představuje určité ‚riziko lhostejnosti‘ – o věci, které fungují dobře, nemají politici velký zájem.“ Současné signály z Washingtonu však jasně naznačují, že je třeba posilovat bilaterální vztahy – jak politické, tak mezilidské.Proč je tak slabý zájem o němčinu jako druhý jazyk na školách a proč ani děti žijící v příhraničních oblas...2025-02-2430 minTalking Postgres with Claire GiordanoTalking Postgres with Claire GiordanoWhy mentor Postgres developers with Robert HaasNobody works on an open-source project forever—eventually, people move on. So of course today's Postgres contributors want to see more developers join the project, pick up the torch, and continue to make Postgres amazing. Hence the importance of mentorship. In this episode of Talking Postgres with Claire Giordano, PostgreSQL major contributor and committer Robert Haas shares how he learned the ropes in Postgres by channeling “what would Tom Lane do” during patch reviews; why he launched the new PostgreSQL Hackers Mentoring program; and the intellectually stimulating care and feeding it takes to make Postgres thrive.Link...2025-02-071h 26DimunDimunV případu Parkanové se stala fatální chyba, která se může opakovat, upozorňuje advokát Tomáš SokolCelá epizoda bez reklam na INFO.CZ https://www.info.cz/podcasty/dimun/tomas-sokol-v-pripadu-parkanove-nejde-o-omluvu-bradacove-ale-o-znepokojivy-signal-ze-se-chyba-muze-opakovat👤 Host: advokát Tomáš SokolProč Lenka Bradáčová nemluví pravdu, když tvrdí, že v případu Vlasty Parkanové státní zástupci nepochybili? Proč Tomáš Sokol souhlasí s názorem Jaroslava Fenyka, že nastane problém s podjatostí Bradáčové? A proč se obává zneužitelnosti nového paragrafu trestního zákona o činnosti pro cizí moc? INFO.CZ Komentáře, analýzy a podcasty pro lidi, kteří si chtějí utvořit vlastní názor https://twitter.com/infocz_web...2025-01-2028 minPostgres FMPostgres FMGetting started with benchmarkingMichael and Nikolay are joined by Melanie Plageman, database internals engineer at Microsoft and major contributor and committer to PostgreSQL, to discuss getting started with benchmarking — how it differs for users and developers of Postgres, how and when it comes up during development, some tools and lessons, as well as what she's working on at the moment. Here are some links to things they mentioned:Melanie Plageman https://postgres.fm/people/melanie-plagemanMeanie’s Introduction to Benchmarking With pgbench talk slides https://postgresql.us/events/pgconfnyc2023/schedule/session/1410-introduction-to-benchmarking-with-pgbench/#slidesMelanie’s Visualizing Postgres I/O Performance for Develop...2024-08-1656 minPostgres FMPostgres FMIndex-Only ScansNikolay and Michael discuss Index-Only Scans in Postgres — what they are, how they help, some things to look out for, and some advice. Here are some links to things they mentioned:Index-Only Scans and Covering Indexes (docs) https://www.postgresql.org/docs/current/indexes-index-only-scans.htmlDiscussion on Twitter about JIT and Parallel Query defaults https://x.com/jer_s/status/1819749688184373742Postgres Wiki on Index-Only Scans https://wiki.postgresql.org/wiki/Index-only_scansHeap Fetches https://www.pgmustard.com/docs/explain/heap-fetchesRows Removed By Filter https://www.pgmustard.com/docs/explain/rows-removed-by-filterrandom_page_cost https://postgresqlco.nf/doc/en/par...2024-08-0939 minTalking Postgres with Claire GiordanoTalking Postgres with Claire GiordanoWhy give talks at Postgres conferences with Álvaro Herrera & Boriss MejíasÁlvaro Herrera, and Boriss Mejías, both longtime members of the Postgres developer community, explore the value of giving conference talks—as well as the work involved, the time it takes, and the many different types of conference talks, including presentations about about failure and things that have gone wrong.  In this episode of Path To Citus Con*, Claire and Pino guide the conversation on questions like: Should you add humor to your talks? How does your personality—introvert or extrovert—affect your conference presentations? Is it OK to give the same conference talk at different events?  ...2023-07-061h 04Postgres FMPostgres FMBenchmarkingNikolay and Michael discuss benchmarking — reasons to do it, and some approaches, tools, and resources that can help. Here are links to a few things we mentioned: Towards Millions TPS (blog post by Alexander Korotkov)Episode on testing Episode on buffers pgbenchsysbenchImproving Postgres Connection Scalability (blog post by Andres Freund)pgreplaypgreplay-goJMeterpg_qualstatspg_queryDatabase experimenting/benchmarking (talk by Nikolay, 2018)Database testing (talk by Nikolay at PGCon, 2022)Systems Performance (Brendan Gregg’s book, chapter 12)fioNetdataSubtransactions Considered Harmful (blog post by Nikolay including Netdata exports)WAL compression benchmarks (by Vitaly from Postgres.ai)Dumping/restoring a 1 TiB database benchmarks (by Vital...2023-02-1036 minPostgres FMPostgres FMWAL and checkpoint tuningHere are links to a few things we mentioned: LSN (log sequence number)On the impact of full-page writes (blog post by Tomas Vondra)Deep dive on Aurora Postgres (talk by Grant McAlister) Netdata monitoring PostgresqlCO.NF pgPedia ------------------------What did you like or not like? What should we discuss next time? Let us know by tweeting us on @samokhvalov and @michristofides or by commenting on our Google doc.If you would like to share this episode, here's a good link (and thank you!)Postgres FM is broug...2022-09-0937 minPostgres FMPostgres FMVacuumHere are links to a few things we mentioned: Do you vacuum everyday? (talk by Hannu Krosing)Autovacuum tuning (EDB guide) When autovacuum does not vacuum (2ndQuadrant blog post by Tomas Vondra) Autovacuum tuning basics (old 2ndQuadrant blog post)Discussion with Anastasia Lubennikova (on RuPostgres, in Russian)  B-tree indexes (talk by Anastasia Lubennikova, in English) Discussion with Peter Geoghegan (on Postgres TV)pg_repack pg_squeeze ------------------------What did you like or not like? What should we discuss next time? Let us know by tweeting us on @samokhvalov and @michristofidesIf yo...2022-08-1232 minPostgres FMPostgres FMBRIN indexesHere are links to the two main resources we mentioned: Paul Ramsey's recent blog post on BRIN indexesTomas Vondra's slides on BRIN index improvementsA few other things we mentioned:B-tree Wikipedia page pg_repack pg_squeeze ------------------------What did you like or not like? What should we discuss next time? Let us know by tweeting us on @samokhvalov and @michristofidesIf you would like to share this episode, here's a good link (and thank you!)Postgres FM is brought to you by:Ni...2022-07-2136 min5:595:59Litevský recept na plyn bez Ruska: Loď IndependenceInvaze Ruska na Ukrajinu rozpoutala v Evropě debatu o potřebě vymanit se z energetické závislosti na Rusku. Je možné, aby i zbytek Evropské unie následoval Litvu, která se jako první dokázala odstřihnout od dodávek ruského plynu? Hosté: Mantas Adomėnas - náměstek litevského ministra zahraničíTomas Janeliunas - profesor mezinárodních vztahů na Vilniuské univerzitěPřepis rozhovoru a další informace najdete na webu Seznam ZprávySledujte nás na sociálních sítích Twitter a Instagram...2022-04-1335 min360° - CNN Prima NEWS360° - CNN Prima NEWS360° 15.9.2021https://cnn.iprima.cz/porady/360deg-0/15092021-oldrich-kuzilek-tomas-sokol-alexandr-vondra-mikulas-peksaSee omnystudio.com/listener for privacy information.2021-09-1632 minPARTIE TEREZIE TOMÁNKOVÉPARTIE TEREZIE TOMÁNKOVÉPARTIE Terezie Tománkové 19.7.2020Tah dámou!https://cnn.iprima.cz/porady/partie/19072020-tomas-petricek-alexandr-vondra-a-daniel-pawlasSee omnystudio.com/listener for privacy information.2020-07-1949 min