The query succeeded. Which table state did it read?
Why two successful queries can count different rows when they resolve different Delta or Iceberg table states. Two queries return different counts f…
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One Histogram, Four Engines: Fixing the Statistics Silo Problem
TL;DR — DuckDB, DataFusion, Polars, and Postgres each compute and store table statistics their own way, so a histogram built in your ELT pipeline is…
Why Athena/Iceberg Tends to Make Code the Spec
Every time this comes up, someone credits the same setup: Athena on Iceberg is where "the code is the spec" — where you open Git and read the whole…
Hitting the Iceberg REST Catalog Directly: Understanding the Differences Between Glue Data Catalog and S3 Tables
Original Japanese article : Iceberg REST Catalogを直接叩いて、Glue Data CatalogとS3 Tablesの違いを理解する Introduction I'm Aki, an AWS Community Builder ( @jitepen…
AI Enrichment Pipeline: From Sample Classification to 100K-File Metadata Search with Bedrock and OpenSearch NextGen
Quick Recap: What We Built in Part 1 In Part 1 , we built a metadata catalog on Apache Iceberg (S3 Tables) that makes unstructured files on FSx for…
From Hours to Seconds: An AI-Powered Metadata Catalog for Unstructured Data on FSx for ONTAP
What Works Now vs What Requires Validation This article separates verified AWS-native capabilities from cross-platform paths that still require vali…
Rethinking Lakehouse Architecture Through Data Ownership: AWS vs. Snowflake
Original Japanese article : データの主導権から考えるAWSとSnowflakeのレイクハウスアーキテクチャ Introduction I'm Aki, an AWS Community Builder ( @jitepengin ). When designing a…
Load PostgreSQL into Apache Iceberg with Sling
Introduction Apache Iceberg is the table format that turns a pile of Parquet files in object storage into something that behaves like a warehouse ta…
When does Iceberg beat Parquet+projection on AWS Glue, and when doesn't ?
Why this project I built this repo because I didn't have one of this kind yet and, having worked on data ingestion with Glue for a while, I wanted t…
Ursa — a new Diskless Lakestream engine for Kafka
The future of Kafka is diskless topics + native Apache Iceberg / Delta Lake integration Intro Ursa is a relatively new engine that's being fitted in…