random

随机数生成器

概览

扩展包名	版本	分类	许可证	语言
`pg_random`	`2.0.0`	FUNC	PostgreSQL	C

ID	扩展名	Bin	Lib	Load	Create	Trust	Reloc	模式
4790	`random`	否	是	否	是	否	是	-

相关扩展	`faker` `dbt2` `tsm_system_time` `tsm_system_rows` `pg_mockable` `pgsqlmock` `pgtap` `omni_test`

版本

类型	仓库	版本	PG 大版本	包名	依赖
EXT	PIGSTY	`2.0.0`	1817161514	`pg_random`	-
RPM	PIGSTY	`2.0.0`	1817161514	`pg_random_$v`	-
DEB	PIGSTY	`2.0.0`	1817161514	`postgresql-$v-random`	-

OS / PG	PG18	PG17	PG16	PG15	PG14
el8.x86_64	PIGSTY 2.0.0 el8.x86_64.pg18 : pg_random_18 pg_random_18-2.0.0-1PIGSTY.el8.x86_64.rpm PIGSTY · 2.0.0 · 17.1KiB	PIGSTY 2.0.0 el8.x86_64.pg17 : pg_random_17 pg_random_17-2.0.0-1PIGSTY.el8.x86_64.rpm PIGSTY · 2.0.0 · 17.1KiB	PIGSTY 2.0.0 el8.x86_64.pg16 : pg_random_16 pg_random_16-2.0.0-1PIGSTY.el8.x86_64.rpm PIGSTY · 2.0.0 · 17.1KiB	PIGSTY 2.0.0 el8.x86_64.pg15 : pg_random_15 pg_random_15-2.0.0-1PIGSTY.el8.x86_64.rpm PIGSTY · 2.0.0 · 17.2KiB	PIGSTY 2.0.0 el8.x86_64.pg14 : pg_random_14 pg_random_14-2.0.0-1PIGSTY.el8.x86_64.rpm PIGSTY · 2.0.0 · 17.1KiB
el8.aarch64	PIGSTY 2.0.0 el8.aarch64.pg18 : pg_random_18 pg_random_18-2.0.0-1PIGSTY.el8.aarch64.rpm PIGSTY · 2.0.0 · 16.9KiB	PIGSTY 2.0.0 el8.aarch64.pg17 : pg_random_17 pg_random_17-2.0.0-1PIGSTY.el8.aarch64.rpm PIGSTY · 2.0.0 · 16.9KiB	PIGSTY 2.0.0 el8.aarch64.pg16 : pg_random_16 pg_random_16-2.0.0-1PIGSTY.el8.aarch64.rpm PIGSTY · 2.0.0 · 16.9KiB	PIGSTY 2.0.0 el8.aarch64.pg15 : pg_random_15 pg_random_15-2.0.0-1PIGSTY.el8.aarch64.rpm PIGSTY · 2.0.0 · 17.0KiB	PIGSTY 2.0.0 el8.aarch64.pg14 : pg_random_14 pg_random_14-2.0.0-1PIGSTY.el8.aarch64.rpm PIGSTY · 2.0.0 · 17.0KiB
el9.x86_64	PIGSTY 2.0.0 el9.x86_64.pg18 : pg_random_18 pg_random_18-2.0.0-1PIGSTY.el9.x86_64.rpm PIGSTY · 2.0.0 · 17.1KiB	PIGSTY 2.0.0 el9.x86_64.pg17 : pg_random_17 pg_random_17-2.0.0-1PIGSTY.el9.x86_64.rpm PIGSTY · 2.0.0 · 17.1KiB	PIGSTY 2.0.0 el9.x86_64.pg16 : pg_random_16 pg_random_16-2.0.0-1PIGSTY.el9.x86_64.rpm PIGSTY · 2.0.0 · 17.1KiB	PIGSTY 2.0.0 el9.x86_64.pg15 : pg_random_15 pg_random_15-2.0.0-1PIGSTY.el9.x86_64.rpm PIGSTY · 2.0.0 · 17.1KiB	PIGSTY 2.0.0 el9.x86_64.pg14 : pg_random_14 pg_random_14-2.0.0-1PIGSTY.el9.x86_64.rpm PIGSTY · 2.0.0 · 17.0KiB
el9.aarch64	PIGSTY 2.0.0 el9.aarch64.pg18 : pg_random_18 pg_random_18-2.0.0-1PIGSTY.el9.aarch64.rpm PIGSTY · 2.0.0 · 16.7KiB	PIGSTY 2.0.0 el9.aarch64.pg17 : pg_random_17 pg_random_17-2.0.0-1PIGSTY.el9.aarch64.rpm PIGSTY · 2.0.0 · 16.7KiB	PIGSTY 2.0.0 el9.aarch64.pg16 : pg_random_16 pg_random_16-2.0.0-1PIGSTY.el9.aarch64.rpm PIGSTY · 2.0.0 · 16.7KiB	PIGSTY 2.0.0 el9.aarch64.pg15 : pg_random_15 pg_random_15-2.0.0-1PIGSTY.el9.aarch64.rpm PIGSTY · 2.0.0 · 16.8KiB	PIGSTY 2.0.0 el9.aarch64.pg14 : pg_random_14 pg_random_14-2.0.0-1PIGSTY.el9.aarch64.rpm PIGSTY · 2.0.0 · 16.8KiB
el10.x86_64	PIGSTY 2.0.0 el10.x86_64.pg18 : pg_random_18 pg_random_18-2.0.0-1PIGSTY.el10.x86_64.rpm PIGSTY · 2.0.0 · 17.0KiB	PIGSTY 2.0.0 el10.x86_64.pg17 : pg_random_17 pg_random_17-2.0.0-1PIGSTY.el10.x86_64.rpm PIGSTY · 2.0.0 · 17.0KiB	PIGSTY 2.0.0 el10.x86_64.pg16 : pg_random_16 pg_random_16-2.0.0-1PIGSTY.el10.x86_64.rpm PIGSTY · 2.0.0 · 17.0KiB	PIGSTY 2.0.0 el10.x86_64.pg15 : pg_random_15 pg_random_15-2.0.0-1PIGSTY.el10.x86_64.rpm PIGSTY · 2.0.0 · 16.9KiB	PIGSTY 2.0.0 el10.x86_64.pg14 : pg_random_14 pg_random_14-2.0.0-1PIGSTY.el10.x86_64.rpm PIGSTY · 2.0.0 · 17.0KiB
el10.aarch64	PIGSTY 2.0.0 el10.aarch64.pg18 : pg_random_18 pg_random_18-2.0.0-1PIGSTY.el10.aarch64.rpm PIGSTY · 2.0.0 · 16.9KiB	PIGSTY 2.0.0 el10.aarch64.pg17 : pg_random_17 pg_random_17-2.0.0-1PIGSTY.el10.aarch64.rpm PIGSTY · 2.0.0 · 16.9KiB	PIGSTY 2.0.0 el10.aarch64.pg16 : pg_random_16 pg_random_16-2.0.0-1PIGSTY.el10.aarch64.rpm PIGSTY · 2.0.0 · 16.9KiB	PIGSTY 2.0.0 el10.aarch64.pg15 : pg_random_15 pg_random_15-2.0.0-1PIGSTY.el10.aarch64.rpm PIGSTY · 2.0.0 · 16.9KiB	PIGSTY 2.0.0 el10.aarch64.pg14 : pg_random_14 pg_random_14-2.0.0-1PIGSTY.el10.aarch64.rpm PIGSTY · 2.0.0 · 16.9KiB
d12.x86_64	PIGSTY 2.0.0 d12.x86_64.pg18 : postgresql-18-random postgresql-18-random_2.0.0-1PIGSTY~bookworm_amd64.deb PIGSTY · 2.0.0 · 20.2KiB	PIGSTY 2.0.0 d12.x86_64.pg17 : postgresql-17-random postgresql-17-random_2.0.0-1PIGSTY~bookworm_amd64.deb PIGSTY · 2.0.0 · 20.3KiB	PIGSTY 2.0.0 d12.x86_64.pg16 : postgresql-16-random postgresql-16-random_2.0.0-1PIGSTY~bookworm_amd64.deb PIGSTY · 2.0.0 · 20.2KiB	PIGSTY 2.0.0 d12.x86_64.pg15 : postgresql-15-random postgresql-15-random_2.0.0-1PIGSTY~bookworm_amd64.deb PIGSTY · 2.0.0 · 20.3KiB	PIGSTY 2.0.0 d12.x86_64.pg14 : postgresql-14-random postgresql-14-random_2.0.0-1PIGSTY~bookworm_amd64.deb PIGSTY · 2.0.0 · 20.3KiB
d12.aarch64	PIGSTY 2.0.0 d12.aarch64.pg18 : postgresql-18-random postgresql-18-random_2.0.0-1PIGSTY~bookworm_arm64.deb PIGSTY · 2.0.0 · 20.0KiB	PIGSTY 2.0.0 d12.aarch64.pg17 : postgresql-17-random postgresql-17-random_2.0.0-1PIGSTY~bookworm_arm64.deb PIGSTY · 2.0.0 · 20.0KiB	PIGSTY 2.0.0 d12.aarch64.pg16 : postgresql-16-random postgresql-16-random_2.0.0-1PIGSTY~bookworm_arm64.deb PIGSTY · 2.0.0 · 20.0KiB	PIGSTY 2.0.0 d12.aarch64.pg15 : postgresql-15-random postgresql-15-random_2.0.0-1PIGSTY~bookworm_arm64.deb PIGSTY · 2.0.0 · 20.1KiB	PIGSTY 2.0.0 d12.aarch64.pg14 : postgresql-14-random postgresql-14-random_2.0.0-1PIGSTY~bookworm_arm64.deb PIGSTY · 2.0.0 · 20.1KiB
d13.x86_64	PIGSTY 2.0.0 d13.x86_64.pg18 : postgresql-18-random postgresql-18-random_2.0.0-1PIGSTY~trixie_amd64.deb PIGSTY · 2.0.0 · 20.3KiB	PIGSTY 2.0.0 d13.x86_64.pg17 : postgresql-17-random postgresql-17-random_2.0.0-1PIGSTY~trixie_amd64.deb PIGSTY · 2.0.0 · 20.3KiB	PIGSTY 2.0.0 d13.x86_64.pg16 : postgresql-16-random postgresql-16-random_2.0.0-1PIGSTY~trixie_amd64.deb PIGSTY · 2.0.0 · 20.3KiB	PIGSTY 2.0.0 d13.x86_64.pg15 : postgresql-15-random postgresql-15-random_2.0.0-1PIGSTY~trixie_amd64.deb PIGSTY · 2.0.0 · 20.3KiB	PIGSTY 2.0.0 d13.x86_64.pg14 : postgresql-14-random postgresql-14-random_2.0.0-1PIGSTY~trixie_amd64.deb PIGSTY · 2.0.0 · 20.3KiB
d13.aarch64	PIGSTY 2.0.0 d13.aarch64.pg18 : postgresql-18-random postgresql-18-random_2.0.0-1PIGSTY~trixie_arm64.deb PIGSTY · 2.0.0 · 20.1KiB	PIGSTY 2.0.0 d13.aarch64.pg17 : postgresql-17-random postgresql-17-random_2.0.0-1PIGSTY~trixie_arm64.deb PIGSTY · 2.0.0 · 20.1KiB	PIGSTY 2.0.0 d13.aarch64.pg16 : postgresql-16-random postgresql-16-random_2.0.0-1PIGSTY~trixie_arm64.deb PIGSTY · 2.0.0 · 20.1KiB	PIGSTY 2.0.0 d13.aarch64.pg15 : postgresql-15-random postgresql-15-random_2.0.0-1PIGSTY~trixie_arm64.deb PIGSTY · 2.0.0 · 20.1KiB	PIGSTY 2.0.0 d13.aarch64.pg14 : postgresql-14-random postgresql-14-random_2.0.0-1PIGSTY~trixie_arm64.deb PIGSTY · 2.0.0 · 20.1KiB
u22.x86_64	PIGSTY 2.0.0 u22.x86_64.pg18 : postgresql-18-random postgresql-18-random_2.0.0-1PIGSTY~jammy_amd64.deb PIGSTY · 2.0.0 · 21.6KiB	PIGSTY 2.0.0 u22.x86_64.pg17 : postgresql-17-random postgresql-17-random_2.0.0-1PIGSTY~jammy_amd64.deb PIGSTY · 2.0.0 · 21.9KiB	PIGSTY 2.0.0 u22.x86_64.pg16 : postgresql-16-random postgresql-16-random_2.0.0-1PIGSTY~jammy_amd64.deb PIGSTY · 2.0.0 · 21.9KiB	PIGSTY 2.0.0 u22.x86_64.pg15 : postgresql-15-random postgresql-15-random_2.0.0-1PIGSTY~jammy_amd64.deb PIGSTY · 2.0.0 · 21.7KiB	PIGSTY 2.0.0 u22.x86_64.pg14 : postgresql-14-random postgresql-14-random_2.0.0-1PIGSTY~jammy_amd64.deb PIGSTY · 2.0.0 · 21.7KiB
u22.aarch64	PIGSTY 2.0.0 u22.aarch64.pg18 : postgresql-18-random postgresql-18-random_2.0.0-1PIGSTY~jammy_arm64.deb PIGSTY · 2.0.0 · 21.1KiB	PIGSTY 2.0.0 u22.aarch64.pg17 : postgresql-17-random postgresql-17-random_2.0.0-1PIGSTY~jammy_arm64.deb PIGSTY · 2.0.0 · 21.4KiB	PIGSTY 2.0.0 u22.aarch64.pg16 : postgresql-16-random postgresql-16-random_2.0.0-1PIGSTY~jammy_arm64.deb PIGSTY · 2.0.0 · 21.4KiB	PIGSTY 2.0.0 u22.aarch64.pg15 : postgresql-15-random postgresql-15-random_2.0.0-1PIGSTY~jammy_arm64.deb PIGSTY · 2.0.0 · 21.5KiB	PIGSTY 2.0.0 u22.aarch64.pg14 : postgresql-14-random postgresql-14-random_2.0.0-1PIGSTY~jammy_arm64.deb PIGSTY · 2.0.0 · 21.4KiB
u24.x86_64	PIGSTY 2.0.0 u24.x86_64.pg18 : postgresql-18-random postgresql-18-random_2.0.0-1PIGSTY~noble_amd64.deb PIGSTY · 2.0.0 · 21.4KiB	PIGSTY 2.0.0 u24.x86_64.pg17 : postgresql-17-random postgresql-17-random_2.0.0-1PIGSTY~noble_amd64.deb PIGSTY · 2.0.0 · 21.4KiB	PIGSTY 2.0.0 u24.x86_64.pg16 : postgresql-16-random postgresql-16-random_2.0.0-1PIGSTY~noble_amd64.deb PIGSTY · 2.0.0 · 21.4KiB	PIGSTY 2.0.0 u24.x86_64.pg15 : postgresql-15-random postgresql-15-random_2.0.0-1PIGSTY~noble_amd64.deb PIGSTY · 2.0.0 · 21.2KiB	PIGSTY 2.0.0 u24.x86_64.pg14 : postgresql-14-random postgresql-14-random_2.0.0-1PIGSTY~noble_amd64.deb PIGSTY · 2.0.0 · 21.2KiB
u24.aarch64	PIGSTY 2.0.0 u24.aarch64.pg18 : postgresql-18-random postgresql-18-random_2.0.0-1PIGSTY~noble_arm64.deb PIGSTY · 2.0.0 · 21.1KiB	PIGSTY 2.0.0 u24.aarch64.pg17 : postgresql-17-random postgresql-17-random_2.0.0-1PIGSTY~noble_arm64.deb PIGSTY · 2.0.0 · 21.0KiB	PIGSTY 2.0.0 u24.aarch64.pg16 : postgresql-16-random postgresql-16-random_2.0.0-1PIGSTY~noble_arm64.deb PIGSTY · 2.0.0 · 21.0KiB	PIGSTY 2.0.0 u24.aarch64.pg15 : postgresql-15-random postgresql-15-random_2.0.0-1PIGSTY~noble_arm64.deb PIGSTY · 2.0.0 · 21.1KiB	PIGSTY 2.0.0 u24.aarch64.pg14 : postgresql-14-random postgresql-14-random_2.0.0-1PIGSTY~noble_arm64.deb PIGSTY · 2.0.0 · 21.0KiB
u26.x86_64	PIGSTY 2.0.0 u26.x86_64.pg18 : postgresql-18-random postgresql-18-random_2.0.0-1PIGSTY~resolute_amd64.deb PIGSTY · 2.0.0 · 21.4KiB	PIGSTY 2.0.0 u26.x86_64.pg17 : postgresql-17-random postgresql-17-random_2.0.0-1PIGSTY~resolute_amd64.deb PIGSTY · 2.0.0 · 21.4KiB	PIGSTY 2.0.0 u26.x86_64.pg16 : postgresql-16-random postgresql-16-random_2.0.0-1PIGSTY~resolute_amd64.deb PIGSTY · 2.0.0 · 21.4KiB	PIGSTY 2.0.0 u26.x86_64.pg15 : postgresql-15-random postgresql-15-random_2.0.0-1PIGSTY~resolute_amd64.deb PIGSTY · 2.0.0 · 21.2KiB	PIGSTY 2.0.0 u26.x86_64.pg14 : postgresql-14-random postgresql-14-random_2.0.0-1PIGSTY~resolute_amd64.deb PIGSTY · 2.0.0 · 21.2KiB
u26.aarch64	PIGSTY 2.0.0 u26.aarch64.pg18 : postgresql-18-random postgresql-18-random_2.0.0-1PIGSTY~resolute_arm64.deb PIGSTY · 2.0.0 · 21.3KiB	PIGSTY 2.0.0 u26.aarch64.pg17 : postgresql-17-random postgresql-17-random_2.0.0-1PIGSTY~resolute_arm64.deb PIGSTY · 2.0.0 · 21.2KiB	PIGSTY 2.0.0 u26.aarch64.pg16 : postgresql-16-random postgresql-16-random_2.0.0-1PIGSTY~resolute_arm64.deb PIGSTY · 2.0.0 · 21.2KiB	PIGSTY 2.0.0 u26.aarch64.pg15 : postgresql-15-random postgresql-15-random_2.0.0-1PIGSTY~resolute_arm64.deb PIGSTY · 2.0.0 · 21.2KiB	PIGSTY 2.0.0 u26.aarch64.pg14 : postgresql-14-random postgresql-14-random_2.0.0-1PIGSTY~resolute_arm64.deb PIGSTY · 2.0.0 · 21.2KiB

构建

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

BASH

pig build pkg pg_random         # 构建 RPM / DEB 包

安装

您可以直接安装 pg_random 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：

BASH

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

BASH

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

pig

BASH

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

dnf

BASH

dnf install -y pg_random_18       # PG 18
dnf install -y pg_random_17       # PG 17
dnf install -y pg_random_16       # PG 16
dnf install -y pg_random_15       # PG 15
dnf install -y pg_random_14       # PG 14

apt

BASH

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

创建扩展：

SQL

CREATE EXTENSION random;

用法

random: PostgreSQL 的可重现随机数据生成器

提供为各种数据类型生成随机值的函数，通过种子控制输出的可重现性。

SQL

CREATE EXTENSION random;

函数

所有函数接受 seed（用于可重现性）和 nvalues（不同值的数量）参数。

函数	说明
`random_string(seed, nvalues, min_length, max_length)`	随机 ASCII 字符串
`random_bytea(seed, nvalues, min_length, max_length)`	随机 bytea
`random_int(seed, nvalues, min_value, max_value)`	随机 32 位整数
`random_bigint(seed, nvalues, min_value, max_value)`	随机 64 位整数
`random_real(seed, nvalues, min_value, max_value)`	随机 32 位浮点数
`random_double_precision(seed, nvalues, min_value, max_value)`	随机 64 位浮点数
`random_inet(seed, nvalues)`	随机 INET 地址（/32 掩码）
`random_cnet(seed, nvalues)`	随机 CIDR，掩码为 8/16/24/32
`random_cnet2(seed, nvalues)`	随机 CIDR，每个掩码长度均等分配
`random_macaddr(seed, nvalues)`	随机 6 字节 MAC 地址
`random_macaddr8(seed, nvalues)`	随机 8 字节 MAC 地址

示例

SQL

-- 生成可重现的随机整数
SELECT random_int(42, 100, 1, 1000) FROM generate_series(1, 10);

-- 长度为 5-10 的随机字符串
SELECT random_string(42, 1000, 5, 10) FROM generate_series(1, 5);

-- 随机 IP 地址
SELECT random_inet(42, 256) FROM generate_series(1, 5);

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