pg_restore -n sch1 : schema "sch1" does not exist

lin <jluwln@163.com> writes:

I create a schema (sch1) in the database of db1, and I also create a table sch1.t1, then I use the comand "pg_dump -d db1 -Fd -f dir1" to back up the database of db1; at lase I drop the schema of sch1; I want to restore the schema sch1, but when I execute the command "pg_restore -d db1 -Fd dir1 -n sch1", get error, just like below.
I just want to test the parameter of "-n" for pg_restore, how can do to use the pg_restore correctly?

Well, you could adopt an actually supported release:

; Dumped from database version: 9.3beta2
; Dumped by pg_dump version: 9.3beta2

I'm not just being snarky: the messages you're getting here remind me of a
bug we fixed some time ago. But even aside from this specific complaint,
the list of known data-loss bugs in 9.3beta should terrify you. Why in
the world are you still using it?

regards, tom lane

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Are you sure it is a bug and you have fixed it? I test it with postgresql-9.4rcl, the result is the same with postgresql-9.3 beta2.

At 2014-12-09 23:54:01, "Tom Lane" <tgl@sss.pgh.pa.us> wrote:

On 12/09/2014 07:29 AM, lin wrote:

Hi,all:
I create a schema (sch1) in the database of db1, and I also
create a table sch1.t1, then I use the comand "pg_dump -d db1 -Fd -f
dir1" to back up the database of db1; at lase I drop the schema of
sch1; I want to restore the schema sch1, but when I execute the
command "pg_restore -d db1 -Fd dir1 -n sch1", get error, just like below.
I just want to test the parameter of "-n" for pg_restore, how
can do to use the pg_restore correctly?

Hmm, seems -n is not the same in pg_dump and pg_restore. If you do a
dump with the
-n switch you get the SCHEMA creation in the restore. If you use the -n
on the restore
you get the contained objects but not the SCHEMA creation statement.
Might try generating a TOC from your dump and then pulling the entry for
schema
sch1 and put it at the top of the TOC you generated below.

[wln@localhost test]$ pg_restore -d db1 -Fd dir1 -n sch1
pg_restore: [archiver (db)] Error while PROCESSING TOC:
pg_restore: [archiver (db)] Error from TOC entry 171; 1259 24669 TABLE
t1 wln
pg_restore: [archiver (db)] could not execute query: ERROR: permission
denied to create "pg_catalog.t1"
DETAIL: System catalog modifications are currently disallowed.
Command was: CREATE TABLE t1 (
id integer
);

pg_restore: [archiver (db)] could not execute query: ERROR: schema
"sch1" does not exist
Command was: ALTER TABLE sch1.t1 OWNER TO wln;

pg_restore: [archiver (db)] Error from TOC entry 2777; 0 24669 TABLE
DATA t1 wln
pg_restore: [archiver (db)] could not execute query: ERROR: relation
"t1" does not exist
Command was: COPY t1 (id) FROM stdin;

WARNING: errors ignored on restore: 3

[wln@localhost test]$ pg_restore -d db1 -Fd dir1 -n sch1 -l
;
; Archive created at Fri Sep 26 10:26:43 2014
; dbname: db1
; TOC Entries: 11
; Compression: -1
; Dump Version: 1.12-0
; Format: DIRECTORY
; Integer: 4 bytes
; Offset: 8 bytes
; Dumped from database version: 9.3beta2
; Dumped by pg_dump version: 9.3beta2
;
;
; Selected TOC Entries:
;
171; 1259 24669 TABLE sch1 t1 wln
2777; 0 24669 TABLE DATA sch1 t1 wln

Thanks,
wanglin

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Adrian Klaver
adrian.klaver@aklaver.com

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