Displaying 81 - 100 of 165 in total
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
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
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
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
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
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
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...
work_mem
Happy holidays! Today's topic is work_mem — how it's used and how to tune it. Related post: https://x.com/samokhvalov/status/1740813478150189172?s=46&t=HSxrW86NZqzPQP9...
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
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
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
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
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
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
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
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 ...
Under-indexing
Nikolay and Michael discuss under-indexing — how to tell if this applies to you, some general and specific cases, as well as some tricky ones. Here are some links to ...
Over-indexing
Nikolay and Michael discuss over-indexing — what we mean by it, the regular issues people discuss about it, as well as a novel one Nikolay has come across and benchmar...
Query hints
Nikolay and Michael discuss query hints — what they are, what we do and don't have in PostgreSQL, and some other things in and around the ecosystem to be aware of. He...
Stop and start Postgres faster
In this episode (recorded live on YouTube), Nikolay discusses Postgres shutdown and startup times – how to troubleshoot them and, when needed, optimize. Some extra th...