Michael Christofides

Michael Christofides

Founder of pgMustard

Appears in 95 Episodes

To 100TB, and beyond!

To 100TB, and beyond!

Michael and Nikolay are joined by three special guests for episode 100 who have all scaled Postgres to significant scale — Arka Ganguli from Notion, Sammy Steele from ...

Sponsoring the community

Sponsoring the community

Michael is joined by Claire Giordano, Head of Postgres Open Source Community Initiatives at Microsoft, to discuss several ways to contribute to the Postgres community ...

Full text search

Full text search

Nikolay and Michael discuss full text search in Postgres — some of the history, some of the features, and whether it now makes sense to try to replace or combine it wi...

Minor releases

Minor releases

Nikolay and Michael discuss Postgres minor releases — how the schedule works, options for upgrading to them, and the importance of reading the release notes. Here are ...

Custom vs generic plan

Custom vs generic plan

Nikolay and Michael discuss custom and generic planning in prepared statements — how it works, how issues can present themselves, some ways to view the generic plan, a...

LIMIT vs Performance

LIMIT vs Performance

Nikolay and Michael discuss LIMIT in Postgres — what it does, how it can help with performance, and an interesting example where adding it can actually hurt performanc...

Buffers II (the sequel)

Buffers II (the sequel)

Nikolay and Michael return to the topic of using the buffers explain parameter — with a new analogy, some (conspiracy) theories of why it's still not on by default, an...

Massive DELETEs

Massive DELETEs

Nikolay and Michael discuss doing massive DELETE operations in Postgres — what can go wrong, how to prevent major issues, and some ideas to minimise their impact. Here...

Logical replication common issues

Logical replication common issues

Nikolay and Michael are joined by Sai Srirampur, CEO and Co-founder of PeerDB, to discuss how to overcome several logical replication issues. They discuss the protocol...

Don't do this

Don't do this

Nikolay and Michael discuss several "Don't do this" lists about Postgres — picking out their favourite items, as well as some contentious ones that could be clearer, o...

Search

Search

Nikolay and Michael have a high-level discussion on all things search — touching on full-text search, semantic search, and faceted search. They discuss what comes in P...

Health check

Health check

Nikolay and Michael discuss Postgres health checks — what they are, things to include, how often makes sense, and whether improvements to Postgres would increase or de...

superuser

superuser

Nikolay and Michael discuss the superuser role in PostgreSQL — what it is, how and when it shouldn’t be used, and whether most cloud providers are right to not give us...

transaction_timeout

transaction_timeout

Nikolay and Michael discuss transaction_timeout (a recently committed addition for Postgres 17) — what it's for, how to get around not having it already, and whether i...

Rails + Postgres

Rails + Postgres

Michael and Nikolay are joined by Andrew Atkinson, author of High Performance PostgreSQL for Rails, to discuss how Rails and Postgres work together — where the limits ...

Why isn't Postgres using my index?

Why isn't Postgres using my index?

Nikolay and Michael discuss a common question — why Postgres isn't using an index, and what you can do about it! Here are some links to things they mentioned:Why isn’t...

Overhead of pg_stat_statements and pg_stat_kcache

Overhead of pg_stat_statements and pg_stat_kcache

Nikolay and Michael discuss the overhead of pg_stat_statements and pg_stat_kcache — mostly focusing on some interesting things Nikolay found while stress-testing some ...

Modern SQL

Modern SQL

Michael is joined by Markus Winand, creator of use-the-index-luke.com and modern-sql.com, and author of SQL Performance Explained, to discuss Modern SQL — what Markus ...

Bloat

Bloat

Michael is joined by Chelsea Dole, Staff Software Engineer and Tech Lead of the Data Storage Team at Brex, to discuss bloat. They cover what it is, why it's a problem,...

pgvector

pgvector

Michael is joined by Jonathan Katz, PostgreSQL Core Team member, Principle Product Manager at AWS, and also pgvector contributor, to discuss pgvector. They cover what ...

pgBadger

pgBadger

Michael is joined by Alicja Kucharczyk, Program Manager for Azure Database for PostgreSQL at Microsoft and organiser of the Warsaw PostgreSQL User Group, to discuss Al...

EXPLAIN

EXPLAIN

With Nikolay taking a well-earned break, Michael covers the basics of EXPLAIN — what it is, the parameters available, and a process he recommends for using it. Here ar...

Partitioning by ULID

Partitioning by ULID

Nikolay and Michael discuss partitioning by ULID — revisiting some of the old UUID vs bigint key debate in light of some new UUID specs, and how these can be used for ...

Hash indexes

Hash indexes

Nikolay and Michael discuss hash indexes in Postgres — what they are, some brief history, their pros and cons vs btrees, and whether or when they recommend using them....

Constraints

Constraints

Nikolay and Michael discuss PostgreSQL constraints — the six different types we have, how to add and modify them, including on large tables with high TPS.  Here are so...

Events

Events

Nikolay and Michael discuss PostgreSQL events — whether in-person or online, large conferences or small meet-ups, as well as some strong opinions based on their experi...

Subtransactions

Subtransactions

Nikolay and Michael discuss PostgreSQL subtransactions — what they are, and four issues they can cause at scale.  Here are some links to things they mentioned:Subtrans...

Companion databases

Companion databases

Nikolay and Michael discuss companion databases — when and why you might want to add another database management system to your stack (or not), and some specifics for ...

Blue-green deployments

Blue-green deployments

Nikolay and Michael discuss blue-green deployments — specifically an RDS blog post, how similar this is (or not) to what they understand to be blue-green deployments, ...

Data model trade-offs

Data model trade-offs

Nikolay and Michael discuss data model trade-offs — some cases where you might want to (gasp) de-normalize, and which PostgreSQL internals are at play.  Here are some ...

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