A (deprecated) contrib module
providing ISBN and ISSN data types
This entry relates to a PostgreSQL feature, application/utility, website or other subject which is no longer available/maintained.
isbn_issn was a contrib module providing ISBN and ISSN data types. It was replaced in PostgreSQL 8.2 by isn, which provides a broader range of article number data types.
isbn_issn was introduced in PostgreSQL 6.4 (release notes; commit 3fa676a7).