postgresql11 备份

逻辑备份

postgres=# select * from t;
 id | name 
----+------
  1 | http
  2 | qdds
(2 rows)

postgres=# \l
                                  List of databases
   Name    |  Owner   | Encoding |   Collate   |    Ctype    |   Access privileges   
-----------+----------+----------+-------------+-------------+-----------------------
 postgres  | postgres | UTF8     | en_US.UTF-8 | en_US.UTF-8 | 
 template0 | postgres | UTF8     | en_US.UTF-8 | en_US.UTF-8 | =c/postgres          +
           |          |          |             |             | postgres=CTc/postgres
 template1 | postgres | UTF8     | en_US.UTF-8 | en_US.UTF-8 | =c/postgres          +
           |          |          |             |             | postgres=CTc/postgres
(3 rows)

postgres=# \d
        List of relations
 Schema | Name | Type  |  Owner   
--------+------+-------+----------
 public | t    | table | postgres
(1 row)

pg_dump -p 5432 --inserts --column-inserts -d postgres | gzip > /u01/pgsql/backup/dump.sql.gz

逻辑恢复

[postgres@redis01 backup]$ gzip -d /u01/pgsql/backup/dump.sql.gz
[postgres@redis01 backup]$ pg_restore -p 5432 -C -d postgres /u01/pgsql/backup/dump.sql
pg_restore: [archiver] input file appears to be a text format dump. Please use psql.
[postgres@redis01 backup]$ psql -p 5432 -d postgres  -f  /u01/pgsql/backup/dump.sql 
SET
SET
SET
SET
SET
 set_config 
------------
 
(1 row)

SET
SET
SET
SET
SET
SET
CREATE TABLE
ALTER TABLE
INSERT 0 1
INSERT 0 1
ALTER TABLE

一个数据库(或者部分对象)导出为脚本文本文件，用psql恢复。
一个数据库(或者部分对象)导出为归档文件，用pg_restore恢复。

导出为其他格式的文件

pg_dump -p 5432  -Fc -d postgres  > /u01/pgsql/backup/dump.dmp
[postgres@redis01 backup]$ pg_restore -p 5432  -d postgres /u01/pgsql/backup/dump.dmp

物理备份冷备

pg_ctl stop
tar -cvjpf /u01/pgsql/colddata.tar.gz data
pg_ctl start

恢复

猜你喜欢