如何获取所有对象的列表？ - PostgreSQL

Question

我需要db中包含的对象列表：表格，序列等......

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获取表格列表是我唯一能够找到的。

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我可以使用哪些想法来获取所有内容？

Answer 1

您可以使用INFORMATION_SCHEMA表以及系统目录来执行此操作。

http://www.alberton.info/postgresql_meta_info.html

如，

列出序列

SELECT relname
FROM pg_class
WHERE relkind = 'S'
AND relnamespace IN (
    SELECT oid
    FROM pg_namespace
    WHERE nspname NOT LIKE 'pg_%'
    AND nspname != 'information_schema'
);

列出触发器

SELECT trg.tgname AS trigger_name
  FROM pg_trigger trg, pg_class tbl
 WHERE trg.tgrelid = tbl.oid
   AND tbl.relname !~ '^pg_';
-- or
SELECT tgname AS trigger_name
  FROM pg_trigger
 WHERE tgname !~ '^pg_';

-- with INFORMATION_SCHEMA:

SELECT DISTINCT trigger_name
  FROM information_schema.triggers
 WHERE trigger_schema NOT IN
       ('pg_catalog', 'information_schema');