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ClickHouse 26.10's string filter during scan cuts a selective LIKE query's memory 25-fold

ClickHouse 26.10's string filter during scan cuts a selective LIKE query's memory 25-fold

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7 min read
Make the database do the minimum: six rules I give my AI

Make the database do the minimum: six rules I give my AI

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8 min read
The Sitting of November 12–13, 2026 — Release Day, Two Bad Release Notes, and One PHPStan Bug

The Sitting of November 12–13, 2026 — Release Day, Two Bad Release Notes, and One PHPStan Bug

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7 min read
The API Worked. My Team IDs Didn't.

The API Worked. My Team IDs Didn't.

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7 min read
BigQuery MERGE Is Not a Uniqueness Constraint: A Replay-Safe Tutorial

BigQuery MERGE Is Not a Uniqueness Constraint: A Replay-Safe Tutorial

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3 min read
Database observability Dynatrace: slow queries with PostgreSQL

Database observability Dynatrace: slow queries with PostgreSQL

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6 min read
How we built an independent search engine on one server

How we built an independent search engine on one server

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6 min read
What Actually Happens Inside Redis: The Single-Threaded Event Loop, Memory Internals, and 100k QPS

What Actually Happens Inside Redis: The Single-Threaded Event Loop, Memory Internals, and 100k QPS

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10 min read
Asset identity modeling at scale

Asset identity modeling at scale

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2 min read
Migrating from hive to hive_ce? typeId 224 is a one-way door

Migrating from hive to hive_ce? typeId 224 is a one-way door

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2 min read
Running a DynamoDB GUI Without a Mouse: Testing Keyboard and Screen-Reader Accessibility

Running a DynamoDB GUI Without a Mouse: Testing Keyboard and Screen-Reader Accessibility

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6 min read
The Database Commit and the Queue Publish: Closing the Failure Gap in PHP Applications

The Database Commit and the Queue Publish: Closing the Failure Gap in PHP Applications

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8 min read
My First Contribution to ClickHouse: Two Weeks From "My Laptop Can't Build It" to 154 Green CI Checks

My First Contribution to ClickHouse: Two Weeks From "My Laptop Can't Build It" to 154 Green CI Checks

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12 min read
SQL Server Multiple Cascade Paths (Error 1785): Which Foreign Key Loses ON DELETE CASCADE, and What Replaces It

SQL Server Multiple Cascade Paths (Error 1785): Which Foreign Key Loses ON DELETE CASCADE, and What Replaces It

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11 min read
Iceberg catalogs explained: REST, Glue, S3 Tables, Polaris, Nessie

Iceberg catalogs explained: REST, Glue, S3 Tables, Polaris, Nessie

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2 min read
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