摘要：
参考资源：https://www.alberton.info/postgresql_meta_info.htmlhttps://my.oschina.net/Kenyon/blog/226600栏目信息：greenplum：https://www.alberton.info/postgresql_meta_info.html系统表：greenplum：https://blog.csdn.net/tao_
参考：
https://www.alberton.info/postgresql_meta_info.html
https://my.oschina.net/Kenyon/blog/226600
列信息: greenplum: https://www.alberton.info/postgresql_meta_info.html 系统表： greenplum: https://blog.csdn.net/tao_wei162/article/details/84826695 版本号：SELECTVERSION(); 视图： greenplum: https://dba.stackexchange.com/questions/23836/how-to-list-all-views-in-sql-in-postgresql 连接： greenplum: https://blog.csdn.net/enterings/article/details/78348322greenplum jar: https://mvnrepository.com/artifact/com.pivotal/greenplum-jdbc/5.1.4 存储过程： https://www.chrisnewland.com/postgres-list-user-defined-stored-procedures-77https://gpdb.docs.pivotal.io/580/ref_guide/sql_commands/sql_ref.html https://www.digitalocean.com/community/tutorials/how-to-create-data-queries-in-postgresql-by-using-the-select-command