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Editorial Team
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Asked: 2026-06-14T07:10:12+00:00

I would like to create a ERM-Diagram from a PostgreSQL Database which is hosted

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I would like to create a ERM-Diagram from a PostgreSQL Database which is hosted on heroku.
The database itself is almost 20 GB big, which makes downloading the whole dump not an option.

Is there a way to simply backup and download the schema including foreign keys, and maybe 10 rows of each table in the database, which could subsequently be restored into a local dabase via the psql-command?

I have the PG Backups Plus addon enabled, but that seems to only enable me to dump the whole database with the complete dataset.

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1 Answer

  1. Editorial Team

    Use pg_dump instead. The --schema-only|-s option does just what you’re looking for.

    pg_dump --schema-only -h host -U user -f schema_dump_file dbname

    Then just manually grab a bit of data that you want. There’s no easy way, that I know of or seen, around that.

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