Subject | RE: [IBO] Horizontal dataset refinement ? |
---|---|
Author | IBO Support List |
Post date | 2013-03-19T14:43:53Z |
Possibly so, but I'll need a sample app to work with to pin it down.
Will you please send me the DDL of your table and I'll see what it takes?
Jason
-----Original Message-----
From: IBObjects@yahoogroups.com [mailto:IBObjects@yahoogroups.com] On Behalf
Of Jacob Havkrog
Sent: Tuesday, March 19, 2013 1:52 AM
To: IBObjects@yahoogroups.com
Subject: RE: [IBO] Horizontal dataset refinement ?
Hi
Experimenting with the settings AllowHorizontalRefinement, FetchWholeRows
and IndexFieldNames, none of them seem to significantly change the
performance of MyTable.Last. I tried all 8 combinations.
Also adding a descending index to the primary key doesn't seem to do any
difference.
Am I missing something here?
Thanks
Jacob
------------------------------------
___________________________________________________________________________
IB Objects - direct, complete, custom connectivity to Firebird or InterBase
without the need for BDE, ODBC or any other layer.
___________________________________________________________________________
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keyword-searchable FAQ, community code contributions and more !
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Will you please send me the DDL of your table and I'll see what it takes?
Jason
-----Original Message-----
From: IBObjects@yahoogroups.com [mailto:IBObjects@yahoogroups.com] On Behalf
Of Jacob Havkrog
Sent: Tuesday, March 19, 2013 1:52 AM
To: IBObjects@yahoogroups.com
Subject: RE: [IBO] Horizontal dataset refinement ?
Hi
>Did you set the IndexFieldNames or the IndexName property?No I didn't, should I?
>
>Jason
Experimenting with the settings AllowHorizontalRefinement, FetchWholeRows
and IndexFieldNames, none of them seem to significantly change the
performance of MyTable.Last. I tried all 8 combinations.
Also adding a descending index to the primary key doesn't seem to do any
difference.
Am I missing something here?
Thanks
Jacob
------------------------------------
___________________________________________________________________________
IB Objects - direct, complete, custom connectivity to Firebird or InterBase
without the need for BDE, ODBC or any other layer.
___________________________________________________________________________
http://www.ibobjects.com - your IBO community resource for Tech Info papers,
keyword-searchable FAQ, community code contributions and more !
Yahoo! Groups Links