https://github.com/postgrest/pg_csv

CSV aggregate for Postgres
https://github.com/postgrest/pg_csv

csv postgres postgresql postgresql-extension

Last synced: 5 months ago
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CSV aggregate for Postgres

• Host: GitHub
• URL: https://github.com/postgrest/pg_csv
• Owner: PostgREST
• License: mit
• Created: 2025-08-02T01:52:09.000Z (5 months ago)
• Default Branch: master
• Last Pushed: 2025-08-02T02:07:46.000Z (5 months ago)
• Last Synced: 2025-08-02T04:42:54.820Z (5 months ago)
• Topics: csv, postgres, postgresql, postgresql-extension
• Language: C
• Homepage:
• Size: 9.77 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# pg_csv

![PostgreSQL version](https://img.shields.io/badge/postgresql-12+-blue.svg)

[![Coverage Status](https://coveralls.io/repos/github/PostgREST/pg_csv/badge.svg)](https://coveralls.io/github/PostgREST/pg_csv)

[![Tests](https://github.com/PostgREST/pg_csv/actions/workflows/ci.yaml/badge.svg)](https://github.com/PostgREST/pg_csv/actions)

## Installation

Clone this repo and run:

```bash

make && make install

```

To install the extension:

```psql

create extension pg_csv;

```

## csv_agg

Aggregate that builds a CSV as per [RFC 4180](https://www.ietf.org/rfc/rfc4180.txt), quoting as required.

```psql

select csv_agg(x) from projects x;

      csv_agg

-------------------

 id,name,client_id+

 1,Windows 7,1    +

 2,Windows 10,1   +

 3,IOS,2          +

 4,OSX,2          +

 5,Orphan,

(1 row)

```

It also supports adding a custom delimiter.

```psql

select csv_agg(x, '|') from projects x;

      csv_agg

-------------------

 id|name|client_id+

 1|Windows 7|1    +

 2|Windows 10|1   +

 3|IOS|2          +

 4|OSX|2          +

 5|Orphan|

(1 row)

```

> [!IMPORTANT]

> Newline, carriage return and double quotes are not supported as delimiters to maintain the integrity of the separated values format.