[Zope3-dev] Catalog, Multifieldindex, Resultsortig and batching!

[Marcus J. Ertl]

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On Fri, 22 Aug 2003 21:31:10 +0100, Chris Withers wrote:

Hiho!

>Marcus J. Ertl wrote:
>> I try now, to build a fieldindex, that stores it's entries in a
>> sql-database instead of btrees. (I have done some tests before, and it
>> seems, this improves performance, especial by sorting and batching on
>> large resultsets!)
>What happens in queries that use some ZODB indexes and some relational indexes?

Don't know what's your point! Sorry about my english!

My Index is ready, perhabs a view on the sources tell you more, then my
humb
words:

https://tiran.faho.rwth-aachen.de:7443/viewcvs/LNSQLFieldsIndex/trunk/
(Subversion-Respository:
https://tiran.faho.rwth-aachen.de:7443/svn/lnproducts3/LNSQLFieldsIndex/

trunk/)

(Sorry, no tests! All this testing stuff is very new for my, never used
it... I'm just a
hobby-self-made-sometimes-humbling-codestealing-programmer!)

>http://zope.org/Documentation/Books/ZopeBook/2_6Edition/SearchingZCatalog.stx

Aha... read it, but didn't understand TopicIndexes...

>> Isn't there a way to do searches like (index1, value1) OR (index2,
>> value2) in catalogs?
>http://www.zope.org/Members/Kaivo/CatalogQuery
>Shame this never made it into Zope core :-S

Very cool! I have to have a look at the source code! :o) I hope
something like this will make it's way into Zope3. Would many people
help to tame the catalog monster!

Bye
   Marcus

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