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;        
**************************

显示当前数据库的表列表

从pg_catalog.pg_tables中选择*；

（为完整起见）

您还可以查询（SQL标准）信息架构：

SELECT
    table_schema || '.' || table_name
FROM
    information_schema.tables
WHERE
    table_type = 'BASE TABLE'
AND
    table_schema NOT IN ('pg_catalog', 'information_schema');

作为一个快速的oneliner

# just list all the postgres tables sorted in the terminal
db='my_db_name'
clear;psql -d $db -t -c '\dt'|cut -c 11-|perl -ne 's/^([a-z_0-9]*)( )(.*)/$1/; print'

或者如果您更喜欢更清晰的json输出多行：

IFS='' read -r -d '' sql_code <<"EOF_CODE"
    select array_to_json(array_agg(row_to_json(t))) from (
        SELECT table_catalog,table_schema,table_name 
        FROM information_schema.tables
        ORDER BY table_schema,table_name ) t
EOF_CODE
psql -d postgres -t -q -c "$sql_code"|jq

在登录后的PostgreSQL命令行界面中，键入以下命令以连接到所需的数据库。\c[数据库名称]

然后您将看到以下消息：您现在已连接到数据库“[database_name]”

键入以下命令以列出所有表。\时间

该SQL查询适用于大多数PostgreSQL版本，非常简单。

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