pg_dumpbinary v2.15 released

Posted on 2024-02-21 by HexaCluster
Related Open Source

Zurich, Switzerland - Febuary 14th, 2024


pg_dumpbinary dumps a PostgreSQL database to a binary format. The resulting dump must be restored using pg_restorebinary, which is provided.

Version 2.15 has been published, this release adds a new option and fixes a bug reported by users since last release.

  • Add -w, --where command line option to pg_dumpbinary to apply a filter to the data dumped. The filter will be used in a WHERE clause for data export, this clause will be applied to all tables dumped.
  • Fix error "DBD::Pg::db do failed: server closed the connection unexpectedly" when the attempt to dump the pre-data section fail.

A full list of changes and acknowledgments can be found here

pg_dumpbinary is useful when:

  • You have bytea that can not be exported by pg_dump because the total size of the escape/hex output exceeds 1Gb.
  • You have custom type that stores \0 internally in bytea but data are exported by pg_dump as char/varchar/text. In this case pg_dump truncates all data after the first '\0', resulting in data loss.
  • Other cases where a binary output format is useful.

In these kinds of cases pg_dumpbinary helps by dumping the PostgreSQL database in a binary format. In all other cases the pg_dump/pg_restore commands distributed with PostgreSQL are preferred.

See the documentation for a more complete description of available features.

Links & Credits

pg_dumpbinary is an Open Source project from LzLabs GmbH. Contributions and ideas are welcome. Send your ideas, features requests, or patches using GitHub's tools.

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