1.先安装pl/python模块python
yum install postgresql94-plpython.x86_64 在postgres用户下执行createlang plpythonu
2.编写python代码 /usr/lib64/python2.6/plpy_as_cli_test.py
sql
import aerospike import sys config = { 'hosts': [ ( '192.168.0.30', 4000 ) ], 'policies': { 'timeout': 1000 # milliseconds } } def get_as_data(): global client if client == None: client = aerospike.client(config) client.connect() # Retrieve the record using the key. (key, meta, bins) = client.get(('test','demo','foo'))
3.编写pl/python存储过程
shell
CREATE FUNCTION py_get_as_data() RETURNS void AS $$ import plpy_as_cli_test plpy_as_cli_test.get_as_data() $$ LANGUAGE plpythonu;
4.在psql中执行以下命令post
select py_get_as_data()
这样就完成了sql调用python代码完成aerospike交互的过程。spa
是否是很爽,sql能够经过pl/python中能够干任意想干的事情哦。
postgresql