Subject Index Coverage in Firebird
Author Hemant.Sapre@iflexsolutions.com
Hi,



We are trying to use the Index Coverage concept (as available in other
databases) in Firebird. But we are not getting any performance benefits
with this.



We are trying to fetch records from a 24 Million record table, and in
order to avoid the fetch from both index and the actual table, we
included the required non-key field in the index so that the Firebird
database does not read the table but fetches data from the index.
However, there is no improvement in the time taken in both approaches.



Please let us know if there is any alternative technique of doing this
OR any special way of declaring the index.



Thanks and Regards,

Hemant.

Project Leader - Investment Banking Group

PrimeSourcing(tm) "Add Value Reduce Risk"

i-flex solutions ltd., Mumbai

Tel Office: +91-22-5504-4051

e-mail: hemant.sapre@...
<BLOCKED::mailto:hemant.sapre@...>





DISCLAIMER:
This message contains privileged and confidential information and is intended only for the individual named.If you are not the intended recipient you should not disseminate,distribute,store,print, copy or deliver this message.Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system.E-mail transmission cannot be guaranteed to be secure or error-free as information could be intercepted,corrupted,lost,destroyed,arrive late or incomplete or contain viruses.The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard-copy version.


[Non-text portions of this message have been removed]