Re: [rfc] unicode escapes for extended strings

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Marko Kreen <markokr(at)gmail(dot)com>
Cc: Sam Mason <sam(at)samason(dot)me(dot)uk>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: [rfc] unicode escapes for extended strings
Date: 2009-04-19 21:10:32
Message-ID: 8564.1240175432@sss.pgh.pa.us
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Marko Kreen <markokr(at)gmail(dot)com> writes:
> On 4/18/09, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> The point has come up before, and I kinda thought we *had* changed the
>> lexer to reject \000. I see we haven't though. Curiously, this
>> does fail:
>>
>> regression=# select U&'abc\0000xyz';
>> ERROR: invalid byte sequence for encoding "SQL_ASCII": 0x00

> I think that's because out verifier actually *does* reject \0,
> only problem is that \0 does not set saw_high_bit flag,
> so the verifier simply does not get executed.
> But U& executes it always.

I fixed this in HEAD.

regards, tom lane

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