thank you for your reply.
In SQL Server, the variant character selector is treated as one character with two characters. The collation order is Japanese_XJIS_140_CS_AS_KS_WS_VSS_UTF8.
Moto.
-----Original Message-----
From: Tom Lane <tgl@xxxxxxxxxxxxx>
Sent: Tuesday, March 29, 2022 7:26 PM
To: Holger Jakobs <holger@xxxxxxxxxx>
Cc: pgsql-admin@xxxxxxxxxxxxxxxxxxxx; n2029@xxxxxxxxxxxxx
Subject: Re: About Unicode IVS
Holger Jakobs <holger@xxxxxxxxxx> writes:
> It's totally correct that the two characters are still two characters.
> You would have to normalize the string first, so that the combination
> becomes one character.
Yeah. In principle the normalize() function ought to do this for you. But it doesn't seem to shorten the given example for me; I'm not sure if that means the example is incorrect, or if it's a bug in normalize().
u8=# select octet_length(U&'\+008FBA' || U&'\+0E0102'); octet_length
--------------
7
(1 row)
u8=# select octet_length(normalize(U&'\+008FBA' || U&'\+0E0102')); octet_length
--------------
7
(1 row)
regards, tom lane
