Hello,
I read about the padding-of-CHAR-values changes in the release notes for
7.4.
Making PostgreSQL less standard compliant is sad; I also disagree
with the statement that trimming of trailing white-space is what people
expect.
What's worse, and this may be classified as an error:
create table chartest(col char(10) not null);
insert into chartest values ('AAA');
select character_length(col) from chartest;
character_length
------------------
10
select character_length(col || 'hey') from chartest;
character_length
------------------
6
SELECT CHARACTER_LENGTH(col) <
CHARACTER_LENGTH(col||'hey') from chartest;
?column?
----------
f
The last two results are horrifying, in my opinion, especially when you
consider them in concert: Concatenating a value with another value
decreases its length...
--
Greetings from Troels Arvin, Copenhagen, Denmark
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