Tag:query planning
Articles tagged "query planning".
- 31 MIN READ•Sep 10, 2026
Partition Statistics Files in Apache Iceberg
The underused Iceberg metadata for planning: what the partition statistics file holds, what the spec guarantees, how to write one, and when it earns its slot.
Apache Icebergquery planningmetadata - 30 MIN READ•Sep 2, 2026
Storage-Partitioned Joins and the Bucket Transform
How the spec-defined bucket transform lets engines skip the shuffle in joins, and how to set it up and keep it engaged in Spark.
Apache IcebergBucketingQuery Planning - 8 MIN READ•Apr 29, 2026
Inside the Query Optimizer: How Engines Pick a Plan
Query optimizers transform SQL into execution plans using rule-based rewrites, cost-based search, and adaptive runtime adjustments.
query optimizercost-based optimizationquery planning