Re: Because you guys/gals/girls/women/insert pc term here are a smart lot
| From: | Frank Stanovcak | Date: | Tue, 06 Jan 2009 15:19:33 +0000 |
| Subject: | Re: Because you guys/gals/girls/women/insert pc term here are a smart lot | ||
| References: | 1 2 3 4 5 6 7 8 9 10 | Groups: | php.general |
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So what I'm taking away from this is that I can index a text column, but
that is relatively new. Based on experience with technology I'm going to
guess it's not a very efficient index or search function yet. CHAR seems to
be well entrenched, and the favorite for any column I may need to search
against. I just need to be warry of the size limits and account for them in
my program and data entry.
Does that seem to be the consensus?
"Nathan Rixham" <nrixham@gmail.com> wrote in message
news:4963388F.5080707@gmail.com...
> chris smith wrote:
>>> It may be worth mentioning that, IIRC, CHAR is faster due to the fixed
>>> length. If you can make your table use a fixed length row size (ie no
>>> variable length columns), it'll be faster.
>>
>> I'd be interested in seeing tests about this.. I doubt there's any
>> difference.
>
> quote: http://dev.mysql.com/doc/refman/5.1/en/data-size.html
> For MyISAM tables, if you do not have any variable-length columns
> (VARCHAR, TEXT, or BLOB columns), a fixed-size row format is used. *This
> is faster but unfortunately may waste some space.* See Section 13.4.3,
> MyISAM Table Storage Formats. You can hint that you want to have fixed
> length rows even if you have VARCHAR columns with the CREATE TABLE option
> ROW_FORMAT=FIXED.