无法安装 pgcrypto

Question

我是 postgres 新手，我需要下载并安装 pgcrypto 扩展。我运行了下面的命令，但什么也没发生：

    [root@localhost /]# yum install pgcrypto
   Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirror.nbrc.ac.in
* extras: mirrors.nhanhoa.com
 * updates: mirror.nbrc.ac.in
No package pgcrypto available.
Error: Nothing to do

然后，我在google上查看了几个命令并尝试了以下：

    [root@localhost ~]# gppkg -r pgcrypto
-bash: gppkg: command not found

我在 centos 上使用 postgres 11.3。请让我知道适当的命令/链接，我可以从那里下载/安装 pgcrypto。任何帮助将不胜感激。

谢谢，

Answer 1

您可能正在寻找要安装的 postgresql11-contrib 软件包：

# yum info postgresql11-contrib
Loaded plugins: fastestmirror, ovl
Loading mirror speeds from cached hostfile
 * base: centos.mirror.triple-it.nl
 * extras: mirror.nforce.com
 * updates: centos.mirror.triple-it.nl
Available Packages
Name        : postgresql11-contrib
Arch        : x86_64
Version     : 11.4
Release     : 1PGDG.rhel7
Size        : 617 k
Repo        : pgdg11/7/x86_64
Summary     : Contributed source and binaries distributed with PostgreSQL
URL         : https://www.postgresql.org/
License     : PostgreSQL
Description : The postgresql11-contrib package contains various extension modules that are
            : included in the PostgreSQL distribution.