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The Percona Database Performance Blog

Technical guides, deep dives, and perspectives across MySQL, PostgreSQL, MongoDB, Valkey, Redis, and more.

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September 28, 2026

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Jobin Augustine

PgQ and PgQue: Workflow Engines you might need in PostgreSQL

In many real production databases, we often see some tables receiving high-frequency updates (millions per day) and autovacuum running repeatedly (hun...

When pt-online-schema-change “where” Meets Galera: Understanding Chunk Auto-Resize and Flow Control

DISTANCE() and VECTOR_DISTANCE(): Vector Similarity in Percona Server for MySQL 9.7

September 17, 2026

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Vadim Tkachenko

Evaluating LLM models for DBA tasks

Group Replication Beyond a Single Cluster: DC-DR with Percona (PS MySQL) Operator

Enabling TLS in PXC without Downtime

Far
Enough.

Said no pioneer ever.

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The Percona Database Performance Blog

When pt-online-schema-change “where” Meets Galera: Understanding Chunk Auto-Resize and Flow Control

DISTANCE() and VECTOR_DISTANCE(): Vector Similarity in Percona Server for MySQL 9.7

Evaluating LLM models for DBA tasks

Group Replication Beyond a Single Cluster: DC-DR with Percona (PS MySQL) Operator

Too many GCache Page Files in MySQL Data Directory

pgBackRest Compression: How Much CPU Is a Smaller Backup Worth?

Performance improvements in Percona Server 8.4.11-11

Percona and HexaCluster: Faster, Safer Oracle Migration

Enabling TLS in PXC without Downtime

Far Enough.

Far
Enough.