如何将公共架构还原到其他架构 [英] How to restore public schema into different schema
问题描述
我有一个转储,其中的数据和结构位于公共模式中.我想将其还原为具有自定义名称的架构-我该怎么做?
I have a dump, where the data and the structure is in the public schema. I want to restore it into a schema with a custom name - how can I do that?
编辑V 2:
我的转储文件来自heroku,一开始看起来像这样:
My dump file is from heroku, and looks like this at the beginning:
PGDMP
!
pd6rq1i7f3kcath9.1.59.1.6<Y
0ENCODINENCODINGSET client_encoding = 'UTF8';
falseZ
00
STDSTRINGS
STDSTRINGS)SET standard_conforming_strings = 'off';
false[
126216385d6rq1i7f3kcatDATABASE?CREATE DATABASE d6rq1i7f3kcath WITH TEMPLATE = template0 ENCODING = 'UTF8' LC_COLLATE = 'en_US.UTF-8' LC_CTYPE = 'en_US.UTF-8';
DROP DATABASE d6rq1i7f3kcath;
uc0lt9t3fj0da4false26152200publicSCHEMACREATE SCHEMA public;
DROP SCHEMA public;
postgresfalse\
SCHEMA publicCOMMENT6COMMENT ON SCHEMA public IS 'standard public schema';
postgresfalse5?307916392plpgsql EXTENSION?CREATE EXTENSION IF NOT EXISTS plpgsql WITH SCHEMA pg_catalog;
DROP EXTENSION plpgsql;
false]
00EXTENSION plpgsqlCOMMENT@COMMENT ON EXTENSION plpgsql IS 'PL/pgSQL procedural language';
false212?125516397_final_mode(anyarrayFUNCTION?CREATE FUNCTION _final_mode(anyarray) RETURNS anyelement
LANGUAGE sql IMMUTABLE
AS $_$
SELECT a
FROM unnest($1) a
GROUP BY 1
ORDER BY COUNT(1) DESC, 1
LIMIT 1;
$_$;
,DROP FUNCTION public._final_mode(anyarray);
publicuc0lt9t3fj0da4false5?125516398mode(anyelement) AGGREGATE?CREATE AGGREGATE mode(anyelement) (
SFUNC = array_append,
STYPE = anyarray,
INITCOND = '{}',
FINALFUNC = _final_mode
);
(DROP AGGREGATE public.mode(anyelement);
publicuc0lt9t3fj0da4false5224?125916399 advert_candidate_collector_failsTABLECREATE TABLE advert_candidate_collector_fails (
id integer NOT NULL,
advert_candidate_collector_status_id integer,
exception_message text,
stack_trace text,
url text,
created_at timestamp without time zone,
updated_at timestamp without time zone
);
4DROP TABLE public.advert_candidate_collector_fails;
publicuc0lt9t3fj0da4false5?125916405'advert_candidate_collector_fails_id_seSEQUENCE?CREATE SEQUENCE advert_candidate_collector_fails_id_seq
START WITH 1
INCREMENT BY 1
NO MINVALUE
NO MAXVALUE
CACHE 1;
>DROP SEQUENCE public.advert_candidate_collector_fails_id_seq;
publicuc0lt9t3fj0da4false1615^
00'advert_candidate_collector_fails_id_seqSEQUENCE OWNED BYeALTER SEQUENCE advert_candidate_collector_fails_id_seq OWNED BY advert_candidate_collector_fails.id;
publicuc0lt9t3fj0da4false162_
00'advert_candidate_collector_fails_id_seq
SEQUENCE SETRSELECT pg_catalog.setval('advert_candidate_collector_fails_id_seq', 13641, true);
publicuc0lt9t3fj0da4false162?125916407#advert_candidate_collector_statusesTABLE?CREATE TABLE advert_candidate_collector_statuses (
id integer NOT NULL,
data_source_id character varying(120),
state character varying(15) DEFAULT 'Queued'::character varying,
source_name character varying(30),
collector_type character varying(30),
started_at timestamp without time zone,
ended_at timestamp without time zone,
times_failed integer DEFAULT 0,
created_at timestamp without time zone,
updated_at timestamp without time zone
);
7DROP TABLE public.advert_candidate_collector_statuses;
publicuc0lt9t3fj0da4false240424055?125916412*advert_candidate_collector_statuses_id_seSEQUENCE?CREATE SEQUENCE advert_candidate_collector_statuses_id_seq
START WITH 1
INCREMENT BY 1
NO MINVALUE
NO MAXVALUE
CACHE 1;
ADROP SEQUENCE public.advert_candidate_collector_statuses_id_seq;
publicuc0lt9t3fj0da4false1635`
00*advert_candidate_collector_statuses_id_seqSEQUENCE OWNED BYkALTER SEQUENCE advert_candidate_collector_statuses_id_seq OWNED BY advert_candidate_collector_statuses.id;
publicuc0lt9t3fj0da4false164a
00*advert_candidate_collector_statuses_id_seq
SEQUENCE SETVSELECT pg_catalog.setval('advert_candidate_collector_statuses_id_seq', 133212, true);
publicuc0lt9t3fj0da4false164?125916414advertsTABLE"CREATE TABLE adverts (
id integer NOT NULL,
car_id integer NOT NULL,
source_name character varying(20),
url text,
first_extraction timestamp without time zone,
last_observed_at timestamp without time zone,
created_at timestamp without time zone,
updated_at timestamp without time zone,
source_id character varying(255),
deactivated_at timestamp without time zone,
seller_id integer NOT NULL,
data_source_id character varying(100),
price integer,
availability_state character varying(15)
);
ROP TABLE public.adverts;
publicuc0lt9t3fj0da4false5?125916420adverts_id_seSEQUENCEpCREATE SEQUENCE adverts_id_seq
START WITH 1
INCREMENT BY 1
推荐答案
@Tometzky的解决方案不太正确,至少在9.2的pg_dump
中.它将在新架构中创建表,但是pg_dump
架构限定ALTER TABLE ... OWNER TO
语句,因此这些语句将失败:
@Tometzky's solution isn't quite right, at least with 9.2's pg_dump
. It'll create the table in the new schema, but pg_dump
schema-qualifies the ALTER TABLE ... OWNER TO
statements, so those will fail:
postgres=# CREATE DATABASE demo;
\cCREATE DATABASE
postgres=# \c demo
You are now connected to database "demo" as user "postgres".
demo=# CREATE TABLE public.test ( dummy text );
CREATE TABLE
demo=# \d
List of relations
Schema | Name | Type | Owner
--------+------+-------+----------
public | test | table | postgres
(1 row)
demo=# \q
$
$ pg_dump -U postgres -f demo.sql demo
$ sed -i 's/^SET search_path = public, pg_catalog;$/SET search_path = testschema, pg_catalog;/' demo.sql
$ grep testschema demo.sql
SET search_path = testschema, pg_catalog;
$ dropdb -U postgres demo
$ createdb -U postgres demo
$ psql -U postgres -c 'CREATE SCHEMA testschema;' demo
CREATE SCHEMA
$ psql -U postgres -f demo.sql -v ON_ERROR_STOP=1 -v QUIET=1 demo
psql:demo.sql:40: ERROR: relation "public.test" does not exist
$ psql demo
demo=> \d testschema.test
Table "testschema.test"
Column | Type | Modifiers
--------+------+-----------
dummy | text |
您还需要编辑转储以删除public.test
上的架构限定或将其更改为新的架构名称. sed
是用于此的有用工具.
You will also need to edit the dump to remove the schema-qualification on public.test
or change it to the new schema name. sed
is a useful tool for this.
我本可以宣誓正确的方法是先按pg_dump -Fc -n public -f dump.dbbackup
然后按pg_restore
进入新的模式,但是我似乎无法确切地知道现在的情况.
I could've sworn the correct way to do this was with pg_dump -Fc -n public -f dump.dbbackup
then pg_restore
into a new schema, but I can't seem to find out exactly how right now.
更新:不,看来sed
是您最好的选择.请参阅我要使用其他架构还原数据库
Update: Nope, it looks like sed
is your best bet. See I want to restore the database with a different schema
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