使用仅查看表格

=> \dt

如果要查看架构表

=>\dt+

如果要查看特定的架构表

=>\dt schema_name.* 

select 
  * 
from 
  pg_catalog.pg_tables 
where 
  schemaname != 'information_schema' 
  and schemaname != 'pg_catalog';

如果您在PostgreSQL中使用pgAdmin4，可以使用它来显示数据库中的表：

select * from information_schema.tables where table_schema='public';

要查看psql中的外部表，请运行\dE

运行带有-E标志的psql将响应内部用于实现的查询\dt和类似：

sudo -u postgres psql -E

postgres=# \dt       
********* QUERY **********
SELECT n.nspname as "Schema",
c.relname as "Name", 
CASE c.relkind WHEN 'r' THEN 'table' WHEN 'v' THEN 'view' WHEN 'i' THEN 'index' WHEN 'S' THEN 'sequence' WHEN 's' THEN 'special' END as "Type",
pg_catalog.pg_get_userbyid(c.relowner) as "Owner"
FROM pg_catalog.pg_class c
    LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
WHERE c.relkind IN ('r','')
    AND n.nspname <> 'pg_catalog'
    AND n.nspname <> 'information_schema'
    AND n.nspname !~ '^pg_toast'
AND pg_catalog.pg_table_is_visible(c.oid)
ORDER BY 1,2;        
**************************

从psql命令行界面，

首先，选择数据库

\c database_name

然后，这将显示当前模式中的所有表：

\dt

编程（当然也可以从psql接口）：

SELECT * FROM pg_catalog.pg_tables;

系统表位于pg_catalog数据库中。