1、dblink模塊安裝

登錄主節點並切換到GP用戶下

[[email protected] ~]#su - gpadmin

下載源碼包並解壓，進入dblink目錄下

[[email protected] ~]$ wget https://ftp.postgresql.org/pub/source/v8.2.23/postgresql-8.2.23.tar.gz
[[email protected] ~]$ tar xvf postgresql-8.2.23.tar.gz 
[[email protected] ~]$ cd postgresql-8.2.23/contrib/dblink/

修改Makefile文件，作用是去掉編譯中的警告信息

[[email protected] dblink]$ vi Makefile 
PG_CPPFLAGS = -I$(libpq_srcdir) -w

編譯dblink模塊

[[email protected] dblink]$  make USE_PGXS=1 install

查看hosts中的節點信息

[[email protected] dblink]$ cat /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
172.16.104.21  mdw
172.16.104.22  smdw
172.16.104.23  sdw1
172.16.104.24  sdw2
172.16.104.25  sdw3

把模塊復制到各個節點

[[email protected] dblink]$  gpscp -h smdw -h sdw1 -h sdw2 -h sdw3  dblink.so =:/usr/local/greenplum-db/lib/postgresql/dblink.so

初始化dblink模塊

[[email protected] dblink]$ psql -f dblink.sql gpdatabase
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
REVOKE
REVOKE
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE TYPE
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION

測試

[[email protected] dblink]$ psql -d gpdatabase
psql (8.2.15)
Type "help" for help.
gpdatabase=# select dblink_connect(‘myconn‘,‘dbname=gpdatabase‘);
 dblink_connect 
----------------
 OK
(1 row)

OK，安裝成功。

2、安裝tablefunc模塊，步驟基本如上，

切換到tablefunc目錄下,編譯

[[email protected] ~]$ cd postgresql-8.2.23/contrib/tablefunc/
[[email protected] tablefunc]$  make USE_PGXS=1 install

把模塊傳到各節點

[[email protected] dblink]$  gpscp -h smdw -h sdw1 -h sdw2 -h sdw3  tablefunc.so =:/usr/local/greenplum-db/lib/postgresql/tablefunc.so

初始化模塊

[[email protected] tablefunc]$ psql -f tablefunc.sql gpdatabase
SET
CREATE FUNCTION
CREATE FUNCTION
CREATE TYPE
CREATE TYPE
CREATE TYPE
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION
CREATE FUNCTION

測試

[[email protected] ~]$ psql -d gpdatabase
psql (8.2.15)
Type "help" for help.
gpdatabase=# select * from normal_rand(10, 5, 3); 
   normal_rand    
------------------
 6.49804853868727
 5.94780258015849
 3.76292085922418
 2.26097995785225
 1.06472447639215
 1.83973228257959
  3.4955971041885
 3.95784964260771
 7.32294513598636
 9.51874065685311
(10 rows)

OK，安裝成功。

本文出自 “運維筆記” 博客，請務必保留此出處http://quliren.blog.51cto.com/9849266/1945494

Greenplum 的dblink與tablefunc模塊安裝