這個表的創建時間是Dec 18號
[postgres:5603@eimta] [04-02.11:30:31]=# \dcompany
Table "public.company"
Column| Type | Modifiers
--------+-----------------------+------------------------------------------------------
id |integer | not null default nextval('company_id_seq'::regclass)
name |character varying(32) | not null
age |integer |
Indexes:
"company_pkey" PRIMARY KEY, btree (id)
[postgres:5603@postgres] [04-02.11:17:09]=# \ceimta
You are now connectedto database "eimta" as user "postgres".
[postgres:5603@eimta] [04-02.11:17:16]=# selectrelname,relfilenode,reltablespace from pg_class where relname='company';
relname | relfilenode| reltablespace
---------+-------------+---------------
company| 17632| 0
(1 row)
Time: 12.704 ms
表 company 的 reltablespace值爲 0,表示位於所屬數據庫的默認表空間
[postgres:5603@eimta] [04-02.11:17:19]=# \dt+company
List of relations
Schema | Name | Type | Owner | Size |Description
--------+---------+-------+-----------+-------+-------------
public | company |table | eimtadata | 16 kB |
(1 row)
Time: 0.836 ms
[postgres:5603@eimta] [04-02.11:18:18]=# selectoid,datname,dattablespace from pg_database where datname='eimta';
oid |datname | dattablespace
-------+---------+---------------
17532 |eimta | 1663
(1 row)
Time: 0.431 ms
數據庫的oid 爲 17532
[postgres:5603@eimta] [04-02.11:19:18]=# selectoid,* from pg_tablespace where oid=1663;
oid | spcname | spcowner | spcacl | spcoptions
------+------------+----------+--------+------------
1663 | pg_default| 10| |
(1 row)
[postgres@cnsz081771:eimta:5603/paic/pg5603/data/base]$ ls
1 13268 13269 16745 16746 17532
[postgres:5603@eimta] [04-02.11:20:04]=# \db
List of tablespaces
Name | Owner | Location
------------+----------+----------
pg_default | postgres|
pg_global | postgres |
[postgres@cnsz081771:eimta:5603/paic/pg5603/data/base/17532]$ ll 17632
-rw------- 1 postgrespostgres 8192 Dec 18 11:50 17632