Topic
Parquet
6 posts tagged “Parquet”.
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Variant Shredding Explained: How Iceberg Gets Columnar Performance From Messy JSON
The Variant type in Apache Iceberg v3 gets described in one sentence so often that the sentence has started doing damage: "store JSON without a…
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A Migration Playbook for Moving Legacy Warehouses onto Apache Iceberg
The migration plan says twelve weeks. Week fourteen arrives and the team has moved four tables out of six hundred, because table number five turned…
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The Parquet Versioning Problem, and Why Iceberg Cares About It
A Spark job writes a table. A Trino query against the same table fails with a decoding error on one column. Nothing in the Iceberg metadata looks…
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A Deep Dive Into File Compression: How Data Gets Smaller, Why Codecs Differ, and What to Actually Use in the Lakehouse
Somewhere in your data platform right now, a single configuration property is quietly deciding a meaningful percentage of your storage bill, your…
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The File Format Renaissance: Parquet, Lance, Vortex, Nimble, BtrBlocks, and the New Physics of Columnar Storage
For a decade, the file format layer was the most settled real estate in data. Apache Parquet held the analytical world, ORC held the Hive legacy…
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No Code - Convert XLS/CSV files into Parquet with Dremio
Convert XLS/CSV Files without having to write python