# Parquet Pruning Samples

Parquet fixtures exercising the bloom filter, zone map and dictionary pruning evaluator

> Canonical page: https://elysiatools.com/en/samples/parquet-pruning-samples

- **Category:** Data Analysis

- **Keywords:** parquet, bloom filter, pruning, predicate pushdown

## Overview

Parquet fixtures exercising the bloom filter, zone map and dictionary pruning evaluator

## Examples

- **Two row groups with SBBF bloom filters (id 1–100)**: A 100-row, two-row-group fixture with page statistics, dictionary-encoded names and real split-block bloom filters (XXH64) on the id column — generated by scripts/generate-parquet-bloom-fixture.ts

## When to use

- Use this sample set when you want reference inputs for Parquet Pruning Samples.
- Use it to preview output formats and compare related sample variants.

## How it works

- Open a sample entry to inspect the prepared example payload or asset.
- Compare it with related tools to understand how the workflow connects.

## Use cases

- Two row groups with SBBF bloom filters (id 1–100)

## Frequently asked questions

### What is included in Parquet Pruning Samples?

This page includes curated sample entries, related tools, and neighboring sample collections for Parquet Pruning Samples.

## Related tools

- [Parquet Bloom Filter ZoneMap Dictionary and Column Statistics Pruner Evaluator](https://elysiatools.com/en/tools/parquet-bloom-filter-zonemap-dictionary-and-column-statistics-pruner-evaluator): Decode a Parquet thrift footer and quantify predicate-pushdown pruning: zone-map min/max, split-block bloom filters (XXH64), dictionary ratios and encodings, with per-row-group prune-savings estimates for example WHERE clauses.
- [XLSX Parquet Exporter](https://elysiatools.com/en/tools/xlsx-parquet-exporter): Export worksheet data to Parquet and/or NDJSON for data lake and data warehouse pipelines
- [Audio Silence Map](https://elysiatools.com/en/tools/audio-silence-map): Output silence intervals as JSON and CSV
- [Audio Spectral Filter](https://elysiatools.com/en/tools/audio-spectral-filter): Filter audio based on its spectral content
- [CSV Filter](https://elysiatools.com/en/tools/csv-filter): Filter CSV data by column values with multiple conditions and operators. Supports 12 filter operators including equals, contains, greater_than, less_than, and empty value checks. Additional Filters examples: \[{"column": "age", "operator": "greater_than", "value": "25"}\] \[{"column": "status", "operator": "equals", "value": "active"}, {"column": "score", "operator": "greater_equal", "value": "80"}\] \[{"column": "name", "operator": "contains", "value": "john"}, {"column": "email", "operator": "is_not_empty"}\]
- [Convert GIF to Raw Pixel Buffer](https://elysiatools.com/en/tools/gif-to-raw): Export GIF frames as raw pixel buffer data for analysis, rendering pipelines, and low-level image processing.
- [Audio Band-Pass Filter](https://elysiatools.com/en/tools/audio-band-pass-filter): Allow only a specific band of frequencies to pass
- [Audio Band-Reject Filter](https://elysiatools.com/en/tools/audio-band-reject-filter): Remove a specific band of frequencies

## Related content

- [Parquet Viewer Samples](https://elysiatools.com/en/samples/parquet-viewer-samples): A Parquet sample for in-browser preview
- [Time Zone Workflow Scheduler ICS Samples](https://elysiatools.com/en/samples/time-zone-workflow-scheduler-ics-samples): ICS files generated in the same structure returned by the Time Zone Workflow Scheduler, with multiple VEVENT meeting candidates exported from overlap windows
- [GPX Viewer Samples](https://elysiatools.com/en/samples/gpx-viewer-samples): A GPX geographic data sample for in-browser preview
- [KML Viewer Samples](https://elysiatools.com/en/samples/kml-viewer-samples): A KML geographic data sample for in-browser preview
- [WASM Viewer Samples](https://elysiatools.com/en/samples/wasm-viewer-samples): A WASM sample for in-browser preview
- [ASS Subtitle Samples](https://elysiatools.com/en/samples/ass-samples): Sample ASS subtitle files from simple to complex for style-aware subtitle parsing, translation, conversion, and localization QA