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Editorial Team
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Asked: 2026-06-07T09:00:00+00:00

I need, as a one-off, to copy data from one table in a PostgreSQL

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I need, as a one-off, to copy data from one table in a PostgreSQL database to the corresponding table in a different database. There’s not that much data: about 2500 rows, 8 columns (some numeric, some varchar).

My first thought was to simply pg_dump -a -t table -f output.file and then pg_restore on another database. However, as it turned out, the versions of pg_dump and the source server do not match – and I have no control over versions, so upgrading is not an option:

pg_dump: server version: 9.1.2; pg_dump version: 9.0.5
pg_dump: aborting because of server version mismatch

Unfortunately, with version 9 of Postgres, option -i (ignore version) is not longer available. I do know what I am doing, but it still wouldn’t let me (naturally).

What other options do I have?

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1 Answer

  1. Editorial Team

    I would use COPY TO and COPY FROM. Works in either of the versions and is the optimal tool for this.

    If you want to use pg_dump, you have to use the appropriate version. There are separate executables for each version. On Linux you can get the path of the currently used executable with which pg_dump.

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