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RE: InstantDB: how to make it faster


Hello
	I have two speed problems.

	The first, and least troublesome, is
selecting records out of a 3000 element table.
Although this takesa couple of seconds, I 
can live with it.

	The second, which could be done with a join
at the same time as the first, selects 1 to 30 records
from a table of 28319, for each record in the first select.

	The whole picture is tainted by the fact that 
this is running on a Cassiopeia (133 MH R4000) Pocket
PC. Not very fast at all.

	I could be that Java is just not fast enough for
thie application on this machine. I hoip not though.

	I am currently reducing the number of records by
using a intelligent selection process.

	Thanks for your time.

dkr

-----Original Message-----
From: Peter Hearty [mailto:peter.hearty@lutris.com]
Sent: January 13, 2001 12:18 AM
To: instantDB@enhydra.org
Subject: Re: InstantDB: how to make it faster


Doug

An indexed lookup, testing for equality,  will run at probably the same
speed regardless of the data type. InstantDB uses hash indexes instead of
b-trees so all comparisons are integer comparisons.

How big is the table and how slow is the lookup?

Regards

Pete

--

Peter Hearty                         peter.hearty@lutris.com
Lutris Technologies (UK)        http://www.lutris.com
----- Original Message -----
From: "Doug Robinson" <drobinson@zicorp.com>
To: <instantDB@enhydra.org>
Sent: Friday, January 12, 2001 8:50 PM
Subject: InstantDB: how to make it faster


> Hello
>
> I have an InstantDB database running on a Cassoiopeia. (a pocket PC)
> I do a simple select on a indexed column. This column is always
> (or can be make so) a 2 character string.
>
> Would it be faster to convert the string into a
> short and run the select against that. Indexed or not?
>
> Would any improvement be significant?
>
> Thanks for your time.
> dkr
> --------------------------------------------------------------------------
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