I've developed new data type for PostgreSQL - uniqueidentifier - 128-bit
value claims to be unique across Universe. It depends on libuuid from
e2fsprogs by Theodore Ts'o. Now I use it in my project. Everybody can grab
Before announce this new type through pgsql-announce I want to clear for
myself some things.
I've marked "=" operator with HASH clause (and planner has started to use
hash jons). But as I understand the right way is to create special hash
function (may be wrapper for hash_any(), isn't it?) and register it for hash
as for btree method.
So is it desirable to mark "=" as HASH for this type (seems internal 16 byte
representation will be hash well) and if yes how can I create hash sort
method for uniqueidentifier?
PS. If you decide to install uniqueidentifier look at the date of
uuid/uuid.h somewhere in INCLUDE path. Sometimes it's necessary to manualy
enter "make install" in lib/uuid directory of e2fsprogs.
pgsql-hackers by date
|Next:||From: Lee Harr||Date: 2001-06-26 21:11:00|
|Subject: Re: Encrypting pg_shadow passwords|
|Previous:||From: Jim Mercer||Date: 2001-06-26 18:52:56|
|Subject: Re: Re: Encrypting pg_shadow passwords|