postgresql

History

Bruce Momjian 558fae16e3 The attached patch enables the contrib subtree to build cleanly under Cygwin with the possible exception of mSQL-interface. Since I don't have mSQL installed, I skipped this tool. Except for dealing with a missing getopt.h (oid2name) and HUGE (seg), the bulk of the patch uses the standard PostgreSQL approach to deal with Windows DLL issues. I tested the build aspect of this patch under Cygwin and Linux without any ill affects. Note that I did not actually attempt to test the code for functionality. The procedure to apply the patch is as follows: $ # save the attachment as /tmp/contrib.patch $ # change directory to the top of the PostgreSQL source tree $ patch -p0 </tmp/contrib.patch Jason		2001-06-18 21:38:02 +00:00
..
Makefile	The attached patch enables the contrib subtree to build cleanly under	2001-06-18 21:38:02 +00:00
README.isbn_issn	Add missing /contrib files	2000-06-19 14:02:16 +00:00
isbn_issn.c	Restructure the key include files per recent pghackers discussion: there	2001-02-10 02:31:31 +00:00
isbn_issn.sql.in	Update to /contrib from Karel.	2000-06-19 13:54:50 +00:00

README.isbn_issn

ISBN (books) and ISSN (serials)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

This directory contains definitions for a couple of PostgreSQL
external types, for a couple of international-standard namespaces:
ISBN (books) and ISSN (serials).  Rather than just using a char()
member of the appropriate length, I wanted my database to include
the validity-checking that both these numbering systems were designed
to encompass.  A little bit of research revealed the formulae
for computing the check digits, and I also included some validity
constraints on the number of hyphens.

The internal representation of these types is intended to be
compatible with `char16', in the (perhaps vain) hope that
this will make it possible to create indices of these types
using char16_ops.

These are based on Tom Ivar Helbekkmo's IP address type definition,
from which I have copied the entire form of the implementation.

Garrett A. Wollman, August 1998