Postgres FM

Nikolay Samokhvalov and Michael Christofides
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A weekly podcast about all things PostgreSQL

  1. 19 ਘੰਟੇ ਪਹਿਲਾਂ

    Estimating work_mem

    Nik and Michael are joined by Shaun Thomas to discuss estimating work_mem, memory management in general, and writing an extension to help. Here are some links to things they mentioned:  Shaun Thomas https://postgres.fm/people/shaun-thomaswork_mem https://www.postgresql.org/docs/current/runtime-config-resource.html#GUC-WORK-MEMpg_stat_database https://www.postgresql.org/docs/current/monitoring-stats.html#MONITORING-PG-STAT-DATABASE-VIEWALTER ROLE SET configuration_parameter https://www.postgresql.org/docs/current/sql-alterrole.html#SQL-ALTERROLE-PARAMS-CONFIGURATION-PARAMETERhash_mem_multiplier https://www.postgresql.org/docs/current/runtime-config-resource.html#GUC-HASH-MEM-MULTIPLIERRecent Postgres releases with 28 CVEs fixed https://www.postgresql.org/about/news/postgresql-186-1711-1615-1519-1424-and-19-beta-3-released-3365/Systemic Risks in the Managed PostgreSQL Industry (part 1 of 6, Mehmet Ince) https://mehmetince.net/part-1-6-systemic-risks-in-the-managed-postgresql-industry-extension-risks-are-real-exploiting-postgis-memory-corruption-bug-at-neondb-supabase-and-many-more/Improving Postgres Connection Scalability: Snapshots (blog post by Andres Freund) https://techcommunity.microsoft.com/blog/adforpostgresql/improving-postgres-connection-scalability-snapshots/1806462 ~~~ What did you like or not like? What should we discuss next time? Let us know via a YouTube comment, on social media, or by commenting on our Google doc! ~~~ Postgres FM is produced by: Michael Christofides, founder of pgMustardNikolay Samokhvalov, founder of Postgres.ai With credit to: Jessie Draws for the elephant artwork

  2. 14 ਅਗ

    pgrust

    Nik and Michael are joined by Michael Malis, co-creator of pgrust, to discuss their Postgres rewrite, including reliability problems, compatibility testing, faster analytics, and a new JIT-compiled query engine. Here are some links to things they mentioned:  Michael Malis https://postgres.fm/people/michael-malispgrust https://github.com/malisper/pgrust The four horsemen behind Postgres outages (blog post by Michael Malis) https://malisper.me/the-four-horsemen-behind-thousands-of-postgres-outagesRebuilding Postgres for faster analytics: batching, operator fusion, and SIMD (blog post by Michael Malis) https://malisper.me/how-we-made-postgres-hundreds-of-times-faster-the-query-engine/kani https://github.com/model-checking/kaniAntithesis https://antithesis.comfsyncgate mailing list thread https://www.postgresql.org/message-id/flat/CAMsr%2BYHh%2B5Oq4xziwwoEfhoTZgr07vdGG%2Bhu%3D1adXx59aTeaoQ%40mail.gmail.comHow AI Changes the Economics of JIT Compilers (blog post by Michael Malis) https://malisper.me/how-ai-changes-the-economics-of-jit-compilers/Umbra DB https://umbra-db.com ~~~ What did you like or not like? What should we discuss next time? Let us know via a YouTube comment, on social media, or by commenting on our Google doc! ~~~ Postgres FM is produced by: Michael Christofides, founder of pgMustardNikolay Samokhvalov, founder of Postgres.ai With credit to: Jessie Draws for the elephant artwork

  3. 7 ਅਗ

    MVCC

    Nik and Michael are joined by Radim Marek to discuss MVCC, including his recent article on how Postgres chose to implement it compared to other systems. Here are some links to things they mentioned:  Radim Marek https://postgres.fm/people/radim-marekBoringSQL https://boringsql.comPostgreSQL's MVCC is bad. So is everyone else's (blog post by Radim) https://boringsql.com/posts/mvcc-bad-bad/PostgreSQL MVCC documentation https://www.postgresql.org/docs/current/mvcc-intro.htmlPostgreSQL Storage Internals series by Radim https://boringsql.com/guides/postgresql-storage-internals/PgQue https://github.com/NikolayS/pgqueThe next ten years of Postgres (talk slides by Álvaro Herrera) https://www.postgresql.eu/events/pgconfde2026/sessions/session/7744/slides/866/edb-keynote-pgconfde-2026.pdfEpisode on RegreSQL https://postgres.fm/episodes/regresqlDryRun MCP https://github.com/boringsql/dryrun ~~~ What did you like or not like? What should we discuss next time? Let us know via a YouTube comment, on social media, or by commenting on our Google doc! ~~~ Postgres FM is produced by: Michael Christofides, founder of pgMustardNikolay Samokhvalov, founder of Postgres.ai With credit to: Jessie Draws for the elephant artwork

  4. 31 ਜੁਲਾ

    Xata

    Nik and Michael are joined by Tudor Golubenco, CTO of Xata, to discuss their architecture, progress, and open source tooling. Here are some links to things they mentioned:  Tudor Golubenco https://postgres.fm/people/tudor-golubencoXata https://xata.ioXata is now open source https://xata.io/blog/xata-is-now-open-sourceDBLab Engine https://postgres.ai/docs/database-labpgstream https://github.com/xataio/pgstreamXata acquires Privacy Dynamics for advanced anonymization https://xata.io/blog/xata-acquires-privacy-dynamicsTonic AI https://www.tonic.aiA thousand Postgres branches for one dollar https://xata.io/blog/a-thousand-postgres-branches-for-1pgroll https://github.com/xataio/pgrollCloudNativePG https://github.com/cloudnative-pg/cloudnative-pgPGSimCity https://nikolays.github.io/PGSimCityDeltaX https://github.com/xataio/deltax ~~~ What did you like or not like? What should we discuss next time? Let us know via a YouTube comment, on social media, or by commenting on our Google doc! ~~~ Postgres FM is produced by: Michael Christofides, founder of pgMustardNikolay Samokhvalov, founder of Postgres.ai With credit to: Jessie Draws for the elephant artwork

  5. 24 ਜੁਲਾ

    DBOS

    Nik and Michael are joined by Qian Li and Peter Kraft to talk about DBOS, an open source platform for durable workflows built on Postgres.  Here are some links to things they mentioned:  Qian Li https://postgres.fm/people/qian-liPeter Kraft https://postgres.fm/people/peter-kraftDBOS https://www.dbos.devTemporal https://temporal.ioGadget's use of Postgres https://postgres.fm/episodes/gadgets-use-of-postgresPostgres LISTEN/NOTIFY blog post from Recall AI https://www.recall.ai/blog/postgres-listen-notify-does-not-scalePostgres 19 commit that improves LISTEN/NOTIFY, avoiding waking backends that have no need to process the notification messages https://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=282b1cde9 PgQue https://github.com/NikolayS/pgquepg_durable https://github.com/microsoft/pg_durableAbsurd https://github.com/earendil-works/absurdLISTEN/NOTIFY performance considerations (docs patch submitted by Nik) https://www.postgresql.org/message-id/flat/CAM527d8oDVb2K%2BtTjpjLkd7g14HLDiwwnvv%3Drcn4BMEs%3DMatkQ%40mail.gmail.com#1b6fa752a96aad22bd8ef794fbaf3ea1 ~~~ What did you like or not like? What should we discuss next time? Let us know via a YouTube comment, on social media, or by commenting on our Google doc! ~~~ Postgres FM is produced by: Michael Christofides, founder of pgMustardNikolay Samokhvalov, founder of Postgres.ai With credit to: Jessie Draws for the elephant artwork

  6. 17 ਜੁਲਾ

    pg_stat_log

    Nik and Michael are joined by Fabrízio Mello to discuss his new extension pg_stat_log. Here are some links to things they mentioned:  Fabrízio Mello https://postgres.fm/people/fabrizio-de-royes-melloTimbira https://www.timbira.com.brPlanetScale https://planetscale.compg_stat_log https://github.com/fabriziomello/pg_stat_logCustom Cumulative Statistics (docs) https://www.postgresql.org/docs/current/xfunc-c.html#XFUNC-ADDIN-CUSTOM-CUMULATIVE-STATISTICSCustom Cumulative Statistics (wiki page) https://wiki.postgresql.org/wiki/CustomCumulativeStatslogerrors https://github.com/munakoiso/logerrorspgFouine https://www.postgresql.org/ftp/projects/pgFoundry/pgfouine/pgFouinepgBadger https://github.com/darold/pgbadgerpg_stat_checkpointer https://www.postgresql.org/docs/current/monitoring-stats.html#MONITORING-PG-STAT-CHECKPOINTER-VIEWpg_wait_sampling https://github.com/postgrespro/pg_wait_samplingRFC: pg_stat_logmsg (patch proposal by Joe Conway) https://www.postgresql.org/message-id/flat/89742024-d51a-c66b-90b9-67f837072cd2%40joeconway.com ~~~ What did you like or not like? What should we discuss next time? Let us know via a YouTube comment, on social media, or by commenting on our Google doc! ~~~ Postgres FM is produced by: Michael Christofides, founder of pgMustardNikolay Samokhvalov, founder of Postgres.ai With credit to: Jessie Draws for the elephant artwork

  7. 3 ਜੁਲਾ

    pgBackRest

    Nik and Michael are joined by David Steele to talk all things pgBackRest. Here are some links to things they mentioned:  David Steele https://postgres.fm/people/david-steelepgBackRest https://pgbackrest.orgpg_basebackup https://www.postgresql.org/docs/current/app-pgbasebackup.htmlBarman https://pgbarman.orgpgmoneta https://github.com/pgmoneta/pgmonetaWAL-G https://github.com/wal-g/wal-gReturn pg_control from pg_backup_stop (patch proposal) https://www.postgresql.org/message-id/flat/86436ff9-eb98-4c8a-825e-3bcae022107b%40pgbackrest.org#e36e2ad2f410d1a9a1152e36aa66bb48Add StorageReadMulti for prefetched multi-file/range reads from object stores (pgBackRest change that needs review) https://github.com/pgbackrest/pgbackrest/pull/2783pg_hardstorage https://github.com/cybertec-postgresql/pg_hardstorageWhy the cycle of open-source sustainability needs to be virtuous (blog post by Gabriele Bartolini) https://www.gabrielebartolini.it/articles/2026/04/why-the-cycle-of-open-source-sustainability-needs-to-be-virtuousARIN https://www.arin.netStefan Fercot https://pgstef.github.io/aboutpgBackRest sponsors at the time of recording: AWS, Supabase, pgEdge, Tiger Data, Percona, Eon, Xata, Dalibo, Data Egret ~~~ 00:00 – Intro & pgBackRest origin story03:07 – Could pgBackRest live in Postgres core? Why it hasn't happened11:37 – Primary vs. standby backups & corruption safety20:36 – Measuring RPO & RTO in practice26:20 – Checksum performance & S3 storage class tips30:02 – Standby replay bottleneck35:12 – Log shipping, streaming replication, and sharding44:56 – Maintenance reality & the sponsorship crisis47:41 – What's next: repo-to-repo backup & RPO-zero streaming56:00 – Incremental backup1:05:01 – Reliability philosophy1:10:05 – Second maintainer, community growth & wrap-up ~~~ What did you like or not like? What should we discuss next time? Let us know via a YouTube comment, on social media, or by commenting on our Google doc! ~~~ Postgres FM is produced by: Michael Christofides, founder of pgMustardNikolay Samokhvalov, founder of Postgres.ai With credit to: Jessie Draws for the elephant artwork

  8. 29 ਮਈ

    autovacuum

    Nik and Michael discuss autovacuum, including what it does, and the basics of why and how to tune it.  Here are some links to things they mentioned:  autovacuum https://www.postgresql.org/docs/current/routine-vacuuming.html#AUTOVACUUMautovacuum configuration parameters https://www.postgresql.org/docs/current/runtime-config-vacuum.html#RUNTIME-CONFIG-AUTOVACUUMWhat’s Missing in Postgres? (our episode with Bruce Momjian) https://postgres.fm/episodes/what-s-missing-in-postgrespg_squeeze (our episode with Antonín Houska) https://postgres.fm/episodes/pg_squeezeMy queries to monitor autovacuum (post by Laurenz Albe) https://www.cybertec-postgresql.com/en/monitor-autovacuum-my-queries/Autovacuum Tuning Basics (post by Tomas Vondra, originally for 2nd Quadrant blog) https://www.enterprisedb.com/blog/autovacuum-tuning-basicsZero autovacuum_vacuum_cost_delay, Write Storms, and You (post by Jeremy Schneider) https://ardentperf.com/2026/04/12/zero-autovacuum_cost_delay-write-storms-and-you/Our episode on long-running transactions / xmin horizon https://postgres.fm/episodes/long-running-transactions ~~~ What did you like or not like? What should we discuss next time? Let us know via a YouTube comment, on social media, or by commenting on our Google doc! ~~~ Postgres FM is produced by: Michael Christofides, founder of pgMustardNikolay Samokhvalov, founder of Postgres.ai With credit to: Jessie Draws for the elephant artwork

ਸਾਰੇ (188) ਦੇਖੋ

ਜਾਣਕਾਰੀ

A weekly podcast about all things PostgreSQL

ਜਾਣਕਾਰੀ

  • ਰਚਨਾਕਾਰ
    Nikolay Samokhvalov and Michael Christofides
  • ਸਰਗਰਮ ਸਾਲ
    2022 - 2026
  • ਐਪੀਸੋਡ
    188
  • ਰੇਟਿੰਗ
    ਸਾਫ਼ ਕਰੋ
  • ਕਾਪੀਰਾਈਟ
    © 2026 Nikolay Samokhvalov and Michael Christofides

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