Обсуждение: Trouble restoring 7.2.1 database into 7.4.2 database
I have table defined as follows:
create table vm_emailjob
(
JobId serial not null,
MessageId varchar(128) not null,
Recipients bytea not null,
SendTime bigint not null,
QueuedTime bigint not null,
RetryCount integer not null,
(
JobId serial not null,
MessageId varchar(128) not null,
Recipients bytea not null,
SendTime bigint not null,
QueuedTime bigint not null,
RetryCount integer not null,
primary key (JobId)
);
);
When I restore a backup into a 7.4.2 database from a backup made on 7.2.1 database, using the clean option, I get the following error.
pg_restore: [archiver (db)] could not execute query: ERROR: sequence "vm_emailjob_jobid_seq" does not exist
and the restore fails. If I edit the pg_backup_db.c to display what's statements are being executed I see the following:
sending: 'DROP TABLE "vm_emailjob";'
sending: 'DROP SEQUENCE "vm_emailjob_jobid_seq";'
pg_restore: [archiver (db)] could not execute query: ERROR: sequence "vm_emailjob_jobid_seq" does not exist
Looks like the Drop table is also deleting the sequence.
If I do the restore on a 7.2.1 database I have no problem.
How can I get around this?
Chris White
"Chris White (cjwhite)" <cjwhite@cisco.com> writes:
> When I restore a backup into a 7.4.2 database from a backup made on
> 7.2.1 database, using the clean option, I get the following error.
>
> pg_restore: [archiver (db)] could not execute query: ERROR: sequence
> "vm_emailjob_jobid_seq" does not exist
>
> Looks like the Drop table is also deleting the sequence.
Yup, serial columns work that way since 7.3 or so. Unfortunately 7.2's
pg_dump does not know that.
> How can I get around this?
Don't use --clean, or use 7.4's pg_dump to dump from the older server.
regards, tom lane