byteamagic

pg_byteamagic : Detect MIME types and file formats from PostgreSQL bytea values

Overview

Packages

Source

pig build pkg pg_byteamagic;		# build rpm/deb

Install

Make sure PGDG and PIGSTY repo available:

pig repo add pgsql -u   # add both repo and update cache

Install this extension with pig:

pig install pg_byteamagic;		# install via package name, for the active PG version
pig install byteamagic;		# install by extension name, for the current active PG version

pig install byteamagic -v 18;   # install for PG 18
pig install byteamagic -v 17;   # install for PG 17
pig install byteamagic -v 16;   # install for PG 16
pig install byteamagic -v 15;   # install for PG 15
pig install byteamagic -v 14;   # install for PG 14

Create this extension with:

CREATE EXTENSION byteamagic;

Usage

Sources: GitHub repo, byteamagic docs Extension name: byteamagic The CSV package row is pg_byteamagic; the upstream extension name is byteamagic.

byteamagic uses libmagic on bytea values to identify the MIME type and the file type text inside PostgreSQL.

CREATE EXTENSION byteamagic;
SELECT byteamagic_mime(data);
SELECT byteamagic_text(data);

Functions

• byteamagic_mime(bytea) returns the MIME type as text and matches file --mime-type.
• byteamagic_text(bytea) returns a human-readable file type description and matches file.

Notes

• The extension needs PostgreSQL development headers and the libmagic development package.
• It is intended for databases that store files or blobs in bytea and need in-database type detection.