April 2026
Beginner to intermediate
408 pages
13h 26m
English
Content preview from Architecting an Apache Iceberg Lakehouse
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appendix A The metadata tables
Apache Iceberg tracks rich metadata to efficiently manage its tables. This metadata isn’t just for internal bookkeeping; it’s also exposed to users through special metadata tables that can be queried like regular tables. These metadata tables provide visibility into the physical and logical layout of an Iceberg table, offering insights into data file sizes, partitions, snapshots, and more.
Understanding how to use these metadata tables is essential for monitoring table health, diagnosing performance issues, and automating maintenance tasks like compaction and snapshot expiration. This appendix provides an overview of these tables, demonstrates how to query them using common engines like Spark and Dremio, and ...
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