byteamagic

从 PostgreSQL bytea 值检测 MIME 类型与文件格式

概览

扩展包名	版本	分类	许可证	语言
`pg_byteamagic`	`0.2.4`	UTIL	BSD-2-Clause	C

ID	扩展名	Bin	Lib	Load	Create	Trust	Reloc	模式
4275	`byteamagic`	否	是	否	是	否	是	-

相关扩展	`external_file` `pgpdf` `omni_mimetypes` `fio` `envvar` `floatfile` `file_fdw`

Extension name is byteamagic; package name is pg_byteamagic.

版本

类型	仓库	版本	PG 大版本	包名	依赖
EXT	PIGSTY	`0.2.4`	1817161514	`pg_byteamagic`	-
RPM	PIGSTY	`0.2.4`	1817161514	`pg_byteamagic_$v`	-
DEB	PIGSTY	`0.2.4`	1817161514	`postgresql-$v-pg-byteamagic`	-

OS / PG	PG18	PG17	PG16	PG15	PG14
el8.x86_64	PIGSTY 0.2.4 el8.x86_64.pg18 : pg_byteamagic_18 pg_byteamagic_18-0.2.4-1PIGSTY.el8.x86_64.rpm PIGSTY · 0.2.4 · 13.8KiB	PIGSTY 0.2.4 el8.x86_64.pg17 : pg_byteamagic_17 pg_byteamagic_17-0.2.4-1PIGSTY.el8.x86_64.rpm PIGSTY · 0.2.4 · 13.8KiB	PIGSTY 0.2.4 el8.x86_64.pg16 : pg_byteamagic_16 pg_byteamagic_16-0.2.4-1PIGSTY.el8.x86_64.rpm PIGSTY · 0.2.4 · 13.8KiB	PIGSTY 0.2.4 el8.x86_64.pg15 : pg_byteamagic_15 pg_byteamagic_15-0.2.4-1PIGSTY.el8.x86_64.rpm PIGSTY · 0.2.4 · 13.8KiB	PIGSTY 0.2.4 el8.x86_64.pg14 : pg_byteamagic_14 pg_byteamagic_14-0.2.4-1PIGSTY.el8.x86_64.rpm PIGSTY · 0.2.4 · 13.8KiB
el8.aarch64	PIGSTY 0.2.4 el8.aarch64.pg18 : pg_byteamagic_18 pg_byteamagic_18-0.2.4-1PIGSTY.el8.aarch64.rpm PIGSTY · 0.2.4 · 13.9KiB	PIGSTY 0.2.4 el8.aarch64.pg17 : pg_byteamagic_17 pg_byteamagic_17-0.2.4-1PIGSTY.el8.aarch64.rpm PIGSTY · 0.2.4 · 13.9KiB	PIGSTY 0.2.4 el8.aarch64.pg16 : pg_byteamagic_16 pg_byteamagic_16-0.2.4-1PIGSTY.el8.aarch64.rpm PIGSTY · 0.2.4 · 13.9KiB	PIGSTY 0.2.4 el8.aarch64.pg15 : pg_byteamagic_15 pg_byteamagic_15-0.2.4-1PIGSTY.el8.aarch64.rpm PIGSTY · 0.2.4 · 13.9KiB	PIGSTY 0.2.4 el8.aarch64.pg14 : pg_byteamagic_14 pg_byteamagic_14-0.2.4-1PIGSTY.el8.aarch64.rpm PIGSTY · 0.2.4 · 13.9KiB
el9.x86_64	PIGSTY 0.2.4 el9.x86_64.pg18 : pg_byteamagic_18 pg_byteamagic_18-0.2.4-1PIGSTY.el9.x86_64.rpm PIGSTY · 0.2.4 · 13.8KiB	PIGSTY 0.2.4 el9.x86_64.pg17 : pg_byteamagic_17 pg_byteamagic_17-0.2.4-1PIGSTY.el9.x86_64.rpm PIGSTY · 0.2.4 · 13.8KiB	PIGSTY 0.2.4 el9.x86_64.pg16 : pg_byteamagic_16 pg_byteamagic_16-0.2.4-1PIGSTY.el9.x86_64.rpm PIGSTY · 0.2.4 · 13.8KiB	PIGSTY 0.2.4 el9.x86_64.pg15 : pg_byteamagic_15 pg_byteamagic_15-0.2.4-1PIGSTY.el9.x86_64.rpm PIGSTY · 0.2.4 · 13.8KiB	PIGSTY 0.2.4 el9.x86_64.pg14 : pg_byteamagic_14 pg_byteamagic_14-0.2.4-1PIGSTY.el9.x86_64.rpm PIGSTY · 0.2.4 · 13.8KiB
el9.aarch64	PIGSTY 0.2.4 el9.aarch64.pg18 : pg_byteamagic_18 pg_byteamagic_18-0.2.4-1PIGSTY.el9.aarch64.rpm PIGSTY · 0.2.4 · 13.6KiB	PIGSTY 0.2.4 el9.aarch64.pg17 : pg_byteamagic_17 pg_byteamagic_17-0.2.4-1PIGSTY.el9.aarch64.rpm PIGSTY · 0.2.4 · 13.6KiB	PIGSTY 0.2.4 el9.aarch64.pg16 : pg_byteamagic_16 pg_byteamagic_16-0.2.4-1PIGSTY.el9.aarch64.rpm PIGSTY · 0.2.4 · 13.6KiB	PIGSTY 0.2.4 el9.aarch64.pg15 : pg_byteamagic_15 pg_byteamagic_15-0.2.4-1PIGSTY.el9.aarch64.rpm PIGSTY · 0.2.4 · 13.6KiB	PIGSTY 0.2.4 el9.aarch64.pg14 : pg_byteamagic_14 pg_byteamagic_14-0.2.4-1PIGSTY.el9.aarch64.rpm PIGSTY · 0.2.4 · 13.6KiB
el10.x86_64	PIGSTY 0.2.4 el10.x86_64.pg18 : pg_byteamagic_18 pg_byteamagic_18-0.2.4-1PIGSTY.el10.x86_64.rpm PIGSTY · 0.2.4 · 13.8KiB	PIGSTY 0.2.4 el10.x86_64.pg17 : pg_byteamagic_17 pg_byteamagic_17-0.2.4-1PIGSTY.el10.x86_64.rpm PIGSTY · 0.2.4 · 13.8KiB	PIGSTY 0.2.4 el10.x86_64.pg16 : pg_byteamagic_16 pg_byteamagic_16-0.2.4-1PIGSTY.el10.x86_64.rpm PIGSTY · 0.2.4 · 13.8KiB	PIGSTY 0.2.4 el10.x86_64.pg15 : pg_byteamagic_15 pg_byteamagic_15-0.2.4-1PIGSTY.el10.x86_64.rpm PIGSTY · 0.2.4 · 13.8KiB	PIGSTY 0.2.4 el10.x86_64.pg14 : pg_byteamagic_14 pg_byteamagic_14-0.2.4-1PIGSTY.el10.x86_64.rpm PIGSTY · 0.2.4 · 13.8KiB
el10.aarch64	PIGSTY 0.2.4 el10.aarch64.pg18 : pg_byteamagic_18 pg_byteamagic_18-0.2.4-1PIGSTY.el10.aarch64.rpm PIGSTY · 0.2.4 · 13.9KiB	PIGSTY 0.2.4 el10.aarch64.pg17 : pg_byteamagic_17 pg_byteamagic_17-0.2.4-1PIGSTY.el10.aarch64.rpm PIGSTY · 0.2.4 · 13.9KiB	PIGSTY 0.2.4 el10.aarch64.pg16 : pg_byteamagic_16 pg_byteamagic_16-0.2.4-1PIGSTY.el10.aarch64.rpm PIGSTY · 0.2.4 · 13.9KiB	PIGSTY 0.2.4 el10.aarch64.pg15 : pg_byteamagic_15 pg_byteamagic_15-0.2.4-1PIGSTY.el10.aarch64.rpm PIGSTY · 0.2.4 · 13.9KiB	PIGSTY 0.2.4 el10.aarch64.pg14 : pg_byteamagic_14 pg_byteamagic_14-0.2.4-1PIGSTY.el10.aarch64.rpm PIGSTY · 0.2.4 · 13.9KiB
d12.x86_64	PIGSTY 0.2.4 d12.x86_64.pg18 : postgresql-18-pg-byteamagic postgresql-18-pg-byteamagic_0.2.4-1PIGSTY~bookworm_amd64.deb PIGSTY · 0.2.4 · 10.5KiB	PIGSTY 0.2.4 d12.x86_64.pg17 : postgresql-17-pg-byteamagic postgresql-17-pg-byteamagic_0.2.4-1PIGSTY~bookworm_amd64.deb PIGSTY · 0.2.4 · 10.5KiB	PIGSTY 0.2.4 d12.x86_64.pg16 : postgresql-16-pg-byteamagic postgresql-16-pg-byteamagic_0.2.4-1PIGSTY~bookworm_amd64.deb PIGSTY · 0.2.4 · 10.5KiB	PIGSTY 0.2.4 d12.x86_64.pg15 : postgresql-15-pg-byteamagic postgresql-15-pg-byteamagic_0.2.4-1PIGSTY~bookworm_amd64.deb PIGSTY · 0.2.4 · 10.5KiB	PIGSTY 0.2.4 d12.x86_64.pg14 : postgresql-14-pg-byteamagic postgresql-14-pg-byteamagic_0.2.4-1PIGSTY~bookworm_amd64.deb PIGSTY · 0.2.4 · 10.5KiB
d12.aarch64	PIGSTY 0.2.4 d12.aarch64.pg18 : postgresql-18-pg-byteamagic postgresql-18-pg-byteamagic_0.2.4-1PIGSTY~bookworm_arm64.deb PIGSTY · 0.2.4 · 10.7KiB	PIGSTY 0.2.4 d12.aarch64.pg17 : postgresql-17-pg-byteamagic postgresql-17-pg-byteamagic_0.2.4-1PIGSTY~bookworm_arm64.deb PIGSTY · 0.2.4 · 10.7KiB	PIGSTY 0.2.4 d12.aarch64.pg16 : postgresql-16-pg-byteamagic postgresql-16-pg-byteamagic_0.2.4-1PIGSTY~bookworm_arm64.deb PIGSTY · 0.2.4 · 10.7KiB	PIGSTY 0.2.4 d12.aarch64.pg15 : postgresql-15-pg-byteamagic postgresql-15-pg-byteamagic_0.2.4-1PIGSTY~bookworm_arm64.deb PIGSTY · 0.2.4 · 10.7KiB	PIGSTY 0.2.4 d12.aarch64.pg14 : postgresql-14-pg-byteamagic postgresql-14-pg-byteamagic_0.2.4-1PIGSTY~bookworm_arm64.deb PIGSTY · 0.2.4 · 10.7KiB
d13.x86_64	PIGSTY 0.2.4 d13.x86_64.pg18 : postgresql-18-pg-byteamagic postgresql-18-pg-byteamagic_0.2.4-1PIGSTY~trixie_amd64.deb PIGSTY · 0.2.4 · 10.7KiB	PIGSTY 0.2.4 d13.x86_64.pg17 : postgresql-17-pg-byteamagic postgresql-17-pg-byteamagic_0.2.4-1PIGSTY~trixie_amd64.deb PIGSTY · 0.2.4 · 10.7KiB	PIGSTY 0.2.4 d13.x86_64.pg16 : postgresql-16-pg-byteamagic postgresql-16-pg-byteamagic_0.2.4-1PIGSTY~trixie_amd64.deb PIGSTY · 0.2.4 · 10.7KiB	PIGSTY 0.2.4 d13.x86_64.pg15 : postgresql-15-pg-byteamagic postgresql-15-pg-byteamagic_0.2.4-1PIGSTY~trixie_amd64.deb PIGSTY · 0.2.4 · 10.7KiB	PIGSTY 0.2.4 d13.x86_64.pg14 : postgresql-14-pg-byteamagic postgresql-14-pg-byteamagic_0.2.4-1PIGSTY~trixie_amd64.deb PIGSTY · 0.2.4 · 10.6KiB
d13.aarch64	PIGSTY 0.2.4 d13.aarch64.pg18 : postgresql-18-pg-byteamagic postgresql-18-pg-byteamagic_0.2.4-1PIGSTY~trixie_arm64.deb PIGSTY · 0.2.4 · 10.6KiB	PIGSTY 0.2.4 d13.aarch64.pg17 : postgresql-17-pg-byteamagic postgresql-17-pg-byteamagic_0.2.4-1PIGSTY~trixie_arm64.deb PIGSTY · 0.2.4 · 10.7KiB	PIGSTY 0.2.4 d13.aarch64.pg16 : postgresql-16-pg-byteamagic postgresql-16-pg-byteamagic_0.2.4-1PIGSTY~trixie_arm64.deb PIGSTY · 0.2.4 · 10.6KiB	PIGSTY 0.2.4 d13.aarch64.pg15 : postgresql-15-pg-byteamagic postgresql-15-pg-byteamagic_0.2.4-1PIGSTY~trixie_arm64.deb PIGSTY · 0.2.4 · 10.6KiB	PIGSTY 0.2.4 d13.aarch64.pg14 : postgresql-14-pg-byteamagic postgresql-14-pg-byteamagic_0.2.4-1PIGSTY~trixie_arm64.deb PIGSTY · 0.2.4 · 10.6KiB
u22.x86_64	PIGSTY 0.2.4 u22.x86_64.pg18 : postgresql-18-pg-byteamagic postgresql-18-pg-byteamagic_0.2.4-1PIGSTY~jammy_amd64.deb PIGSTY · 0.2.4 · 10.7KiB	PIGSTY 0.2.4 u22.x86_64.pg17 : postgresql-17-pg-byteamagic postgresql-17-pg-byteamagic_0.2.4-1PIGSTY~jammy_amd64.deb PIGSTY · 0.2.4 · 10.9KiB	PIGSTY 0.2.4 u22.x86_64.pg16 : postgresql-16-pg-byteamagic postgresql-16-pg-byteamagic_0.2.4-1PIGSTY~jammy_amd64.deb PIGSTY · 0.2.4 · 10.9KiB	PIGSTY 0.2.4 u22.x86_64.pg15 : postgresql-15-pg-byteamagic postgresql-15-pg-byteamagic_0.2.4-1PIGSTY~jammy_amd64.deb PIGSTY · 0.2.4 · 10.9KiB	PIGSTY 0.2.4 u22.x86_64.pg14 : postgresql-14-pg-byteamagic postgresql-14-pg-byteamagic_0.2.4-1PIGSTY~jammy_amd64.deb PIGSTY · 0.2.4 · 10.9KiB
u22.aarch64	PIGSTY 0.2.4 u22.aarch64.pg18 : postgresql-18-pg-byteamagic postgresql-18-pg-byteamagic_0.2.4-1PIGSTY~jammy_arm64.deb PIGSTY · 0.2.4 · 10.6KiB	PIGSTY 0.2.4 u22.aarch64.pg17 : postgresql-17-pg-byteamagic postgresql-17-pg-byteamagic_0.2.4-1PIGSTY~jammy_arm64.deb PIGSTY · 0.2.4 · 10.8KiB	PIGSTY 0.2.4 u22.aarch64.pg16 : postgresql-16-pg-byteamagic postgresql-16-pg-byteamagic_0.2.4-1PIGSTY~jammy_arm64.deb PIGSTY · 0.2.4 · 10.8KiB	PIGSTY 0.2.4 u22.aarch64.pg15 : postgresql-15-pg-byteamagic postgresql-15-pg-byteamagic_0.2.4-1PIGSTY~jammy_arm64.deb PIGSTY · 0.2.4 · 10.8KiB	PIGSTY 0.2.4 u22.aarch64.pg14 : postgresql-14-pg-byteamagic postgresql-14-pg-byteamagic_0.2.4-1PIGSTY~jammy_arm64.deb PIGSTY · 0.2.4 · 10.8KiB
u24.x86_64	PIGSTY 0.2.4 u24.x86_64.pg18 : postgresql-18-pg-byteamagic postgresql-18-pg-byteamagic_0.2.4-1PIGSTY~noble_amd64.deb PIGSTY · 0.2.4 · 10.7KiB	PIGSTY 0.2.4 u24.x86_64.pg17 : postgresql-17-pg-byteamagic postgresql-17-pg-byteamagic_0.2.4-1PIGSTY~noble_amd64.deb PIGSTY · 0.2.4 · 10.7KiB	PIGSTY 0.2.4 u24.x86_64.pg16 : postgresql-16-pg-byteamagic postgresql-16-pg-byteamagic_0.2.4-1PIGSTY~noble_amd64.deb PIGSTY · 0.2.4 · 10.7KiB	PIGSTY 0.2.4 u24.x86_64.pg15 : postgresql-15-pg-byteamagic postgresql-15-pg-byteamagic_0.2.4-1PIGSTY~noble_amd64.deb PIGSTY · 0.2.4 · 10.7KiB	PIGSTY 0.2.4 u24.x86_64.pg14 : postgresql-14-pg-byteamagic postgresql-14-pg-byteamagic_0.2.4-1PIGSTY~noble_amd64.deb PIGSTY · 0.2.4 · 10.7KiB
u24.aarch64	PIGSTY 0.2.4 u24.aarch64.pg18 : postgresql-18-pg-byteamagic postgresql-18-pg-byteamagic_0.2.4-1PIGSTY~noble_arm64.deb PIGSTY · 0.2.4 · 10.8KiB	PIGSTY 0.2.4 u24.aarch64.pg17 : postgresql-17-pg-byteamagic postgresql-17-pg-byteamagic_0.2.4-1PIGSTY~noble_arm64.deb PIGSTY · 0.2.4 · 10.8KiB	PIGSTY 0.2.4 u24.aarch64.pg16 : postgresql-16-pg-byteamagic postgresql-16-pg-byteamagic_0.2.4-1PIGSTY~noble_arm64.deb PIGSTY · 0.2.4 · 10.9KiB	PIGSTY 0.2.4 u24.aarch64.pg15 : postgresql-15-pg-byteamagic postgresql-15-pg-byteamagic_0.2.4-1PIGSTY~noble_arm64.deb PIGSTY · 0.2.4 · 10.8KiB	PIGSTY 0.2.4 u24.aarch64.pg14 : postgresql-14-pg-byteamagic postgresql-14-pg-byteamagic_0.2.4-1PIGSTY~noble_arm64.deb PIGSTY · 0.2.4 · 10.8KiB
u26.x86_64	PIGSTY 0.2.4 u26.x86_64.pg18 : postgresql-18-pg-byteamagic postgresql-18-pg-byteamagic_0.2.4-1PIGSTY~resolute_amd64.deb PIGSTY · 0.2.4 · 10.8KiB	PIGSTY 0.2.4 u26.x86_64.pg17 : postgresql-17-pg-byteamagic postgresql-17-pg-byteamagic_0.2.4-1PIGSTY~resolute_amd64.deb PIGSTY · 0.2.4 · 10.8KiB	PIGSTY 0.2.4 u26.x86_64.pg16 : postgresql-16-pg-byteamagic postgresql-16-pg-byteamagic_0.2.4-1PIGSTY~resolute_amd64.deb PIGSTY · 0.2.4 · 10.8KiB	PIGSTY 0.2.4 u26.x86_64.pg15 : postgresql-15-pg-byteamagic postgresql-15-pg-byteamagic_0.2.4-1PIGSTY~resolute_amd64.deb PIGSTY · 0.2.4 · 10.8KiB	PIGSTY 0.2.4 u26.x86_64.pg14 : postgresql-14-pg-byteamagic postgresql-14-pg-byteamagic_0.2.4-1PIGSTY~resolute_amd64.deb PIGSTY · 0.2.4 · 10.8KiB
u26.aarch64	PIGSTY 0.2.4 u26.aarch64.pg18 : postgresql-18-pg-byteamagic postgresql-18-pg-byteamagic_0.2.4-1PIGSTY~resolute_arm64.deb PIGSTY · 0.2.4 · 10.8KiB	PIGSTY 0.2.4 u26.aarch64.pg17 : postgresql-17-pg-byteamagic postgresql-17-pg-byteamagic_0.2.4-1PIGSTY~resolute_arm64.deb PIGSTY · 0.2.4 · 10.8KiB	PIGSTY 0.2.4 u26.aarch64.pg16 : postgresql-16-pg-byteamagic postgresql-16-pg-byteamagic_0.2.4-1PIGSTY~resolute_arm64.deb PIGSTY · 0.2.4 · 10.8KiB	PIGSTY 0.2.4 u26.aarch64.pg15 : postgresql-15-pg-byteamagic postgresql-15-pg-byteamagic_0.2.4-1PIGSTY~resolute_arm64.deb PIGSTY · 0.2.4 · 10.8KiB	PIGSTY 0.2.4 u26.aarch64.pg14 : postgresql-14-pg-byteamagic postgresql-14-pg-byteamagic_0.2.4-1PIGSTY~resolute_arm64.deb PIGSTY · 0.2.4 · 10.8KiB

构建

您可以使用 pig build 命令构建 pg_byteamagic 扩展的 RPM / DEB 包：

pig build pkg pg_byteamagic         # 构建 RPM / DEB 包

安装

您可以直接安装 pg_byteamagic 扩展包的预置二进制包，首先确保 PGDG 和 PIGSTY 仓库已经添加并启用：

pig repo add pgsql -u          # 添加仓库并更新缓存

使用 pig 或者是 apt/yum/dnf 安装扩展：

安装

pig install pg_byteamagic;          # 当前活跃 PG 版本安装

pig

pig ext install -y pg_byteamagic -v 18  # PG 18
pig ext install -y pg_byteamagic -v 17  # PG 17
pig ext install -y pg_byteamagic -v 16  # PG 16
pig ext install -y pg_byteamagic -v 15  # PG 15
pig ext install -y pg_byteamagic -v 14  # PG 14

dnf

dnf install -y pg_byteamagic_18       # PG 18
dnf install -y pg_byteamagic_17       # PG 17
dnf install -y pg_byteamagic_16       # PG 16
dnf install -y pg_byteamagic_15       # PG 15
dnf install -y pg_byteamagic_14       # PG 14

apt

apt install -y postgresql-18-pg-byteamagic   # PG 18
apt install -y postgresql-17-pg-byteamagic   # PG 17
apt install -y postgresql-16-pg-byteamagic   # PG 16
apt install -y postgresql-15-pg-byteamagic   # PG 15
apt install -y postgresql-14-pg-byteamagic   # PG 14

创建扩展：

CREATE EXTENSION byteamagic;

用法

来源: official repo, official doc

byteamagic 会对 bytea 值运行 libmagic，因此 PostgreSQL 可以识别数据库中 blob 的 MIME 类型或人类可读文件类型。包名是 pg_byteamagic，但扩展名是 byteamagic。

CREATE EXTENSION byteamagic;

SELECT byteamagic_mime(data) FROM files;
SELECT byteamagic_text(data) FROM files;

函数

byteamagic_mime(bytea) returns text: 返回 MIME 类型，对应 file --mime-type。
byteamagic_text(bytea) returns text: 返回描述性的文件类型文本，对应 file。

常见用法

SELECT
  id,
  byteamagic_mime(blob) AS mime,
  byteamagic_text(blob) AS kind
FROM uploads;

注意事项

它只检查 bytea 内容；没有运算符、自定义类型或额外的 SQL 管理对象。
构建或安装需要 PostgreSQL 开发头文件，以及系统 libmagic 开发包。
上游文档非常简略；当前面向用户的行为与长期存在的文档页一致。

byteamagic

概览

版本

构建

安装

用法

函数

常见用法

注意事项

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