Query Engines

🔍 Query Engines

Vectorized Execution, Query Planning, Join Algorithms, Cost-Based Optimization

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Scoured 49 posts in 10.3 ms

Understanding Query Performance: Why Your Database Gets Slower Even With Indexes 🐘🦀

 🧩Cognitive Science  Content type: Blog
medium.com
·

TimescaleDB 2.27: Broader Vectorized Execution, Up to 160x More Efficient UPDATE/DELETE, and Smarter UPSERT Pruning

 🌸Bloom Filters  Content type: Blog
tigerdata.com·

Deep dive: How Lightning Engine delivers 4.9x faster Apache Spark performance

 🎯Escape Analysis  Content type: Blog
cloud.google.com·

How the Other Half Counts

 🦆DuckDB  Content type: Blog
thebuild.com··Hacker News

Puffin-Backed Vector Indexes: Attaching Approximate Nearest Neighbor Indexes to Apache Iceberg Snapshots for Compute-Disaggregated Query Engines

 🦆DuckDB  Content type: Academic
arxiv.org·

Postgres vs. MySQL: Engineering the Right Trade-off for Heavy Workloads

 🗄️Database Internals  Content type: Blog
medium.com
·

New comment by nastya_geller in "Ask HN: Who is hiring? (June 2026)"

 🏗️System Design  Content type: Discussion
news.ycombinator.com··Hacker News

Determination Provenance: From Ambiguity to Algebra

 📊Datalog  Content type: Academic
arxiv.org·

Designing Fakes That Prove Correctness

 🏗️System Design
pierrezemb.fr·

Learn SQL Once, Use It for 30 Years

 🧩Cognitive Science  Content type: Discussion
news.ycombinator.com··Hacker News

DuckDB Storage Engine for MariaDB. When the Sea Lion Learns to Quack.

 🦆DuckDB
mariadb.org··Hacker News

Day 10 of 100 Days of ClickHouse®: What Makes ClickHouse SQL Different?

 🔌Microcontrollers
quantrail-data.com··DEV

Passing DBs Through Continuations

 🦆DuckDB  Content type: Blog
remy.wang··Lobsters, Hacker News

Scaling Zero Copy from 1 Trillion to 120 Trillion Rows with File Federation

 📋JSON Parsing
engineering.salesforce.com·

Release metis: v1.4.0 · arm/metis

 🔍Tokenizers  Content type: Code
github.com·

Should you use AI to write tests ?

 🎭Program Synthesis  Content type: Blog
loi.bearblog.dev·

Simplified permissions for Amazon S3 Tables and Iceberg materialized views are now available in AWS GovCloud (US) Regions

 🛡️Capability VMs
aws.amazon.com
·

SmithDB

 🔍RAG  Content type: News
NULL BITMAP by Justin Jaffray via buttondown.com··Lobsters, Hacker News

Beyond Vector Similarity: A Structural Analysis of Graph-Augmented Retrieval for Industrial Knowledge Graphs

 🔍RAG  Content type: Academic
arxiv.org·

HenryNebula/jaydebeapiarrow: JayDeBeApiArrow - High-Performance JDBC to Python DB-API Bridge

 🗄️SQLite  Content type: Code
github.com··Hacker News

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