> For the complete documentation index, see [llms.txt](https://docs.pentaho.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.pentaho.com/pdia-data-integration/9.3-data-integration/pdi-transformation-steps-reference-overview/catalog-output/before-you-begin-catalog-output/general-catalog-output/fields-tab-catalog-output/options-tab-catalog-output/parquet-options-catalog-output.md).
# Parquet options
In the **Options** tab, you can define properties for the Parquet file output.
| Option | Description |
| ----------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Compression** | Specify the codec to use to compress the Parquet Output file:
- None: No compression is used (default).
- Snappy: Using Google's Snappy compression library, writes the data blocks that are followed by the 4-byte, big-endian CRC32 checksum of the uncompressed data in each block.
- GZIP: Uses a compression format that is based on the Deflate algorithm.
|
| **Version** | Specify the version of Parquet you want to use:
|
| **Row group size (MB)** | Specify the group size for the rows. The default value is 0. |
| **Data page size (KB)** | Specify the page size for the data. The default value is 0. |
| **Dictionary encoding** | Specifies the dictionary encoding, which builds a dictionary of values encountered in a column. The dictionary page is written first, before the data pages of the column. Note that if the dictionary grows larger than the **Page size**, whether in size or number of distinct values, then the encoding method will revert to the plain encoding type. |
| **Page size (KB)** | Specify the page size when using dictionary encoding. The default value is 1024. |
---
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