上传 pg_amqp 到 /tmp 目录下

[root@tpg-1 tmp]# yum install lrzsz
[root@tpg-1 tmp]# rz[root@tpg-1 tmp]# ls -l
-rw-r--r--. 1 root root 48444 Dec 13 11:34 pg_amqp-0.3.0.zip[root@tpg-1 tmp]# unzip pg_amqp-0.3.0.zip
[root@tpg-1 tmp]# ls -l
drwxr-xr-x. 5 root root   109 May 20  2011 pg_amqp-0.3.0
-rw-r--r--. 1 root root 48444 Dec 13 11:34 pg_amqp-0.3.0.zip

开始编译

[root@tpg-1 tmp]# cd pg_amqp-0.3.0
[root@tpg-1 tmp]# env LDFLAGS="-lpthread" gmakegcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -Wmissing-format-attribute -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -fPIC -I. -I./ -I/usr/pgsql-10/include/server -I/usr/pgsql-10/include/internal  -D_GNU_SOURCE -I/usr/include/libxml2  -I/usr/include  -c -o src/pg_amqp.o src/pg_amqp.c
src/pg_amqp.c: In function ‘amqp_local_phase2’:
src/pg_amqp.c:99:3: warning: enumeration value ‘XACT_EVENT_PARALLEL_COMMIT’ not handled in switch [-Wswitch]switch(event) {^
src/pg_amqp.c:99:3: warning: enumeration value ‘XACT_EVENT_PARALLEL_ABORT’ not handled in switch [-Wswitch]
src/pg_amqp.c:99:3: warning: enumeration value ‘XACT_EVENT_PRE_COMMIT’ not handled in switch [-Wswitch]
src/pg_amqp.c:99:3: warning: enumeration value ‘XACT_EVENT_PARALLEL_PRE_COMMIT’ not handled in switch [-Wswitch]
src/pg_amqp.c:99:3: warning: enumeration value ‘XACT_EVENT_PRE_PREPARE’ not handled in switch [-Wswitch]gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -Wmissing-format-attribute -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -fPIC -I. -I./ -I/usr/pgsql-10/include/server -I/usr/pgsql-10/include/internal  -D_GNU_SOURCE -I/usr/include/libxml2  -I/usr/include  -c -o src/librabbitmq/amqp_debug.o src/librabbitmq/amqp_debug.c
src/librabbitmq/amqp_debug.c:44:6: warning: no previous prototype for ‘amqp_dump’ [-Wmissing-prototypes]void amqp_dump(void const *buffer, size_t len) {

存在一些警告,安装过程没有关注,貌似也没啥影响,pg_amqp.so可以正常使用

[root@tpg-1 tmp]# env LDFLAGS="-lpthread" gmake install

修改参数

-bash-4.2$ cat postgresql.conf |grep -i preload
shared_preload_libraries = 'pg_amqp.so'     # (change requires restart)

postgresql.conf 的其它参数值依据数据库的作用和机器配置设置

[root@tpg-1 ~]# systemctl status postgresql-10.service
[root@tpg-1 ~]# systemctl start postgresql-10.service  -bash-4.2$ psqlcreate database testdb;\l\c testdbselect name,default_version,installed_versionfrom pg_available_extensionswhere 1=1order by name;create extension amqp;select *from pg_extension;

参考:
https://github.com/omniti-labs/pg_amqp
https://pgxn.org/dist/pg_amqp/
http://blog.163.com/digoal@126/blog/static/16387704020120182524830

备注:
在 centos 7.4 + pgsql9.1 环境编译pg_amqp时，启动pgsql时报下错误，第一个通过德哥的文章解决了，第二步不知道什么原因导致的，先记录下
FATAL: could not load library “/usr/lib/postgresql/9.1/lib/src/pg_amqp.so”: /usr/lib/postgresql/9.1/lib/src/pg_amqp.so: undefined symbol: pthread_key_create

FATAL: could not load library “/usr/lib/postgresql/9.1/lib/src/pg_amqp.so”: /usr/lib/postgresql/9.1/lib/src/pg_amqp.so: undefined symbol: pthread_getspecific