From: PG Bug reporting form <noreply@postgresql.org>
To: pgsql-bugs@lists.postgresql.org
Cc: david@calascibetta.com
Subject: BUG #17258: Unexpected results in CHAR(1) data type
Date: Fri, 29 Oct 2021 18:14:56 +0000
Message-ID: <17258-a7c164c5fb955221@postgresql.org> (raw)
The following bug has been logged on the website:
Bug reference: 17258
Logged by: David Calascibetta
Email address: david@calascibetta.com
PostgreSQL version: 12.8
Operating system: AWS RDS
Description:
My understanding is that a CHAR(1) column can never be 0 (zero) length.
I expect the results of these two SELECT statements to produce the same
result:
select length(substr(' '::varchar,1,1)), ascii(substr('
'::varchar,1,1));
produces==> 1 32 (as expected)
select length(substr(' '::char,1,1)), ascii(substr(' '::char,1,1));
produces==> 0 0 (not as expected)
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To: pgsql-bugs@postgresql.org
Cc: noreply@postgresql.org, pgsql-bugs@lists.postgresql.org, david@calascibetta.com
Subject: Re: BUG #17258: Unexpected results in CHAR(1) data type
In-Reply-To: <17258-a7c164c5fb955221@postgresql.org>
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