Subject Re: [IBO] Migrating BDE/MIDAS applicaiton to IBObjects and MIDAS
Author Jason Wharton
Is it a one-time hit or does it cause a repeating performance burden?
How many indexes are in your database?
This is something that the SchemaCache may help out in.

Jason Wharton
CPS - Mesa AZ
http://www.ibobjects.com


----- Original Message -----
From: "Sean Leyne" <sleyne@...>
Newsgroups: egroups.ibobjects
To: <IBObjects@yahoogroups.com>
Sent: Thursday, October 18, 2001 12:50 PM
Subject: Re: [IBO] Migrating BDE/MIDAS applicaiton to IBObjects and MIDAS


> Jason,
>
> We have tracked down the source of the major delays we are seeing, it's
when
> the TDatasetProvider.CreateDataPacket ->
TDataPackerWriter.GetDataPacket ->
> TDataPackerWriter.WriteMetaData -> TDataPackerWriter.AddIndexDefs routine
> calls the IProviderSupport(Dataset).PSGetIndexDefs([ixUnique]). This
> statement alone accounts for 95% of the performance differential.
>
> We did have an initial look at the Conversion Guide, we will do so again.
>
> Thanks
>
> Sean