Reference community
Apache Parquet Documentation & Spec
Apache Parquet documentation and specification — columnar encoding, row groups, statistics, predicate pushdown, and how to structure files for efficient reads. Understanding statistics and row-group sizing is the practical step that turns "use Parquet" into "and lay out the file like this"; pairs with small-files and lambda-vs-kappa guides.
At a glance
| What | Apache Parquet documentation and specification — columnar encoding, row groups, statistics, predicate pushdown, and how to structure files for efficient reads. Understanding statistics and row-group sizing is the practical step that turns "use Parquet" into "and lay out the file like this"; pairs with small-files and lambda-vs-kappa guides. |
|---|---|
| Where | Data Structures & Formats |
| Why | Understanding row groups and statistics is what turns "use Parquet" into "and lay it out like this". |
Security scan
Last sweep 2026-10-24: 0 finding(s), 0 marked as examples.
Registry stats
| Verification | community · Sep 20, 2026 |
|---|---|
| Completeness | 58 |
| Trust multiplier | ×1.25 |
| Composite | 26.7 · adequate |
| Freshness | 34 days since last source check |
| License | Apache-2.0 |
| Security flags | none |
Did this solve your problem?
Apache Parquet Documentation & Spec