有没有办法导出Postgresql数据库,然后用另一个名称导入它？
我正在使用Postgresql和Rails,我经常从生产中导出数据,数据库名为blah_production,并在开发或导入时使用名称blah_development和blah_staging导入.在MySQL这是微不足道的,因为导出没有任何地方的数据库(可能除了评论),但在Postgresql上似乎是不可能的.这不可能吗？
我目前正在以这种方式转储数据库：
pg_dump blah > blah.dump
我没有使用-c或-C选项.该转储包含以下语句：
COMMENT ON DATABASE blah IS 'blah'; ALTER TABLE public.checks OWNER TO blah; ALTER TABLE public.users OWNER TO blah;
当我尝试导入时
psql blah_devel < blah.dump
我明白了
WARNING: database "blah" does not exist ERROR: role "blah" does not exist
也许问题不是真正的数据库而是角色？
如果我这样转储它：
pg_dump --format=c blah > blah.dump
并尝试以这种方式导入它：
pg_restore -d blah_devel < tmp/blah.psql
我收到这些错误：
pg_restore: WARNING: database "blah" does not exist
pg_restore: [archiver (db)] Error while PROCESSING TOC:
pg_restore: [archiver (db)] Error from TOC entry 1513; 1259 16435 TABLE checks blah
pg_restore: [archiver (db)] could not execute query: ERROR: role "blah" does not exist
Command was: ALTER TABLE public.checks OWNER TO blah;
pg_restore: [archiver (db)] Error from TOC entry 1509; 1259 16409 TABLE users blah
pg_restore: [archiver (db)] could not execute query: ERROR: role "blah" does not exist
Command was: ALTER TABLE public.users OWNER TO blah;
pg_restore: [archiver (db)] Error from TOC entry 1508; 1259 16407 SEQUENCE users_id_seq blah
pg_restore: [archiver (db)] could not execute query: ERROR: role "blah" does not exist
Command was: ALTER TABLE public.users_id_seq OWNER TO blah;
pg_restore: [archiver (db)] Error from TOC entry 1824; 0 0 ACL public postgres
pg_restore: [archiver (db)] could not execute query: ERROR: role "postgres" does not exist
Command was: REVOKE ALL ON SCHEMA public FROM postgres;
pg_restore: [archiver (db)] could not execute query: ERROR: role "postgres" does not exist
Command was: GRANT ALL ON SCHEMA public TO postgres;
WARNING: errors ignored on restore: 11
有任何想法吗？
我看到有些人使用sed脚本来修改转储.我想避免这种解决方案,但如果没有其他选择,我会接受它.有没有人写过一个脚本来改变转储的数据库名称,确保没有数据被改变？