当我在psql中执行\dt时,我只获得当前模式(默认为公共)中的表列表。
如何获得所有模式或特定模式中的所有表的列表?
当我在psql中执行\dt时,我只获得当前模式(默认为公共)中的表列表。
如何获得所有模式或特定模式中的所有表的列表?
您可以从information_schema中选择表
SELECT * FROM information_schema.tables
WHERE table_schema = 'public'
在所有模式中:
=> \dt *.*
在特定模式中:
=> \dt public.*
可以使用带有一些限制的正则表达式
\dt (public|s).(s|t)
List of relations
Schema | Name | Type | Owner
--------+------+-------+-------
public | s | table | cpn
public | t | table | cpn
s | t | table | cpn
Advanced users can use regular-expression notations such as character classes, for example [0-9] to match any digit. All regular expression special characters work as specified in Section 9.7.3, except for . which is taken as a separator as mentioned above, * which is translated to the regular-expression notation .*, ? which is translated to ., and $ which is matched literally. You can emulate these pattern characters at need by writing ? for ., (R+|) for R*, or (R|) for R?. $ is not needed as a regular-expression character since the pattern must match the whole name, unlike the usual interpretation of regular expressions (in other words, $ is automatically appended to your pattern). Write * at the beginning and/or end if you don't wish the pattern to be anchored. Note that within double quotes, all regular expression special characters lose their special meanings and are matched literally. Also, the regular expression special characters are matched literally in operator name patterns (i.e., the argument of \do).
除了information_schema之外,还可以使用pg_tables:
select * from pg_tables where schemaname='public';
对于那些将来遇到这个问题的人:
如果你想查看几个模式的关系列表:
$psql mydatabase
mydatabase=# SET search_path TO public, usa; #schema examples
SET
mydatabase=# \dt
List of relations
Schema | Name | Type | Owner
--------+-----------------+-------+----------
public | counties | table | postgres
public | spatial_ref_sys | table | postgres
public | states | table | postgres
public | us_cities | table | postgres
usa | census2010 | table | postgres
如果您对列出特定模式中的所有表感兴趣,我发现这个答案是相关的:
SELECT table_schema||'.'||table_name AS full_rel_name
FROM information_schema.tables
WHERE table_schema = 'yourschemaname';