[Zope] How to join/add ZCatalog.searchResults?

[Michael Gutmann]

<...>
>Try: title_search[:] + data_search[:]. The result object from a Catalog 
>query supports slicing, and this also works when there is only one result 
>(because then the returned set is just a python list).
>
>ZCatalog uses an object that avoids loading the whole result list into 
>memory if it possibly can help it. Above solution will completely destroy 
>this effort of course.
>
>--
>Martijn Pieters, Web Developer

Hmm, no chance, Zope complains with:

Error Type: MemoryError
Error Value:

that seems to be raised by the controlling method you mentioned

File /www/WWW/Zope/2.0.1/lib/python/DocumentTemplate/DT_Util.py, line 170, in careful_getslice
File /www/WWW/Zope/2.0.1/lib/python/Products/ZCatalog/Lazy.py, line 109, in __getslice__
MemoryError: (see above)

and there ist only one item in each searchResult.
Are the searchResult objects that big, that there has to be such a restriction?

Michael Gutmann
gutmann@uni-duesseldorf.de