Subject Index Coverage in Firebird

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,


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@...

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