---
title: "PostgreSQL to Parquet Action"
description: "You can choose the file format. To create a new action, navigate to the Action tab of the Data Processing Engine (DPE)"
url: https://docs.ovhcloud.com/it/guides/public-cloud/data-platform/dpe-actions-postgresql-to-parquet
lang: it
lastUpdated: 2026-09-14
---
> For AI agents: the complete documentation index is available at https://docs.ovhcloud.com/it/llms.txt, the full documentation bundle is available at https://docs.ovhcloud.com/it/llms-full.txt.

# PostgreSQL to Parquet Action

## Objective

The _PostgreSQL to Parquet_ action extracts data from a PostgreSQL database and puts it into a [Parquet file](https://parquet.apache.org/) in your Project bucket. You can choose the file format.

:::info
**Note:** This action supports the functionality to have customised date in the folder name. You can find the tutorial [here](https://docs.ovhcloud.com/it/guides/public-cloud/data-platform/tutorials-dated-export-folders.md).
:::

## Configure a PostgreSQL to Parquet action

To create a new action, navigate to the **Action tab** of the Data Processing Engine (DPE), click on **New Action** and select the _PostgreSQL to Parquet_ action.

### Choose a source and a destination

To set-up the action, start by selecting a source from the list that you have already set-up in the [Sources](https://docs.ovhcloud.com/it/guides/public-cloud/data-platform/landing-page-connectors-sources.md) tab of the Lakehouse Manager.

![Choose a source and a destination — Select source](/images/public-cloud/data-platform/product/dpe/actions/postgresql-to-parquet/picts/select-source.png)
Then, choose the _destination bucket_ from the list of [Project buckets](https://docs.ovhcloud.com/it/guides/public-cloud/data-platform/lakehouse-manager-buckets.md).

![Choose a source and a destination — List buckets](/images/public-cloud/data-platform/product/dpe/actions/postgresql-to-parquet/picts/list-buckets.png)
### Destination file

You will then be prompted to choose the destination folder. If you leave the folder name empty, it will automatically be named as the source name.

![Destination file — Select destination](/images/public-cloud/data-platform/product/dpe/actions/postgresql-to-parquet/picts/select-destination.png)
Your data will be put into the destination folder in a file named _part-1_. If your file is too big, it will be split into multiple files named _part-1_, _part-2_, _part-3_ and so on.

The order of your rows will be preserved in this process. Hence, the first rows will be in the _part-1_ file and the following rows will be in the _part-2_ file.

:::info
Note that this action has its **transfer speed optimised** for the PostgreSQL source.
:::

## Go further

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