[postmodern-devel] How to remove trailing spaces?
Sebastian Tennant
sebyte at smolny.plus.com
Tue Mar 1 12:29:03 UTC 2011
Quoth Marijn Haverbeke <marijnh at gmail.com>:
>> I meant that I thougth that postgresql could be faster with fixed
>> lenght fields, not postmodern, sorry... :-D
>
> Benchmark this, before you make life hard for yourself. I seem to
> remember an expert telling me that fixed char columns are rarely
> useful anymore.
http://www.postgresql.org/docs/8.3/interactive/datatype-character.html
"There are no performance differences between [character, character varying &
text data types], apart from increased storage size when using the
blank-padded type, and a few extra cycles to check the length when storing
into a length-constrained column. While `character(N)' has performance
advantages in some other database systems, it has no such advantages in
PostgreSQL. In most situations `text' or `character varying' should be used
instead."
Seb
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