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I have a (production) DB server running PostgreSQL v9.0 and a development machine running PostgreSQL v8.4. I would like to take a dump of the production DB and use it on the development machine. I cannot upgrade the postgres on the dev machine.
On the production machine, I run:
pg_dump -f nvdls.db -F p -U nvdladmin nvdlstats
On the development machine, I run:
pg_restore -d nvdlstats -U nvdladmin nvdls.db
And I got this error:
pg_restore: [archiver] unsupported version (1.12) in file header
This occurs regardless of whether I choose the custom, tar, or plain_text format when dumping.
I found one discussion online which suggests that I should use a newer version of pg_restore on the dev machine. I tried this by simply copying the 9.0 binary to the dev machine, but this fails (not unexpectedly) due to linking problems.
I thought that the point of using a plain_text dump was that it would be raw, portable SQL. Apparently not.
How can I get the 9.0 DB into my 8.4 install?
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If you use the --clean option of pg_restore , the old tables will be dropped before the new ones are created. If you do not use the --clean option, you will get an error message that the table already exists, but pg_restore will continue processing unless you use the --exit-on-error option.
restores to earlier versions not working.
pg_restore is only for restoring dumps taken in the "custom" format.
If you do a "plain text" dump you have to use psql to run the generated SQL script:
psql -f nvdls.db dbname username
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