Were you storing persistent-metaclass objects or simply normal
objects?
Normal objects are huge relative to persistent objects as currently
all
the slot names are also serialized (potentially in 32-bit unicode
if on
SBCL). I have some improvements planned to reduce the storage and
processin
Thanks. I'll be great to contribute anything to the project and a
pleasure working with you guys.
On Nov 12, 2006, at 1:11 PM, Ian Eslick wrote:
I'm interested in this problem myself, but haven't had the time to do
the appropriate research. Many SQL query engines are built on top
of a
BTre
Wow! I wasn't expecting to hear back from you until Monday :)I haven't been able to run your code yet. I downloaded SBCL for PPC but have not been able to successfully compile Elephant with it. I will continue trying. I used to have it working before, but stopped using SBCL a while ago for OpenMCL.
>>
>> First of all, ask yourself, what is the size of your dataset? Can
>> you fit it all into memory?
>> If so, you have the full power of lisp at your command in dealing
>> with the querying. You
>> will not have to write any macros to do this. You might find the DCM
>> package, in the "contr
I'm interested in this problem myself, but haven't had the time to do
the appropriate research. Many SQL query engines are built on top of a
BTree infrastructure so building and performing optimized queries should
be quite doable in Elephant. However, I do know that efficient
operations are fairl
I'd love to hear/read about your take on the subject.It would be really great to be able to have some querying or even better a reporting tool that worked with Elephant. May be something a la Crystal Reports, but that may be shooting too high :). How about something like http://www.agata.org.br/?An
On Nov 12, 2006, at 3:48 PM, Robert L. Read wrote: This requires a philosophical response. In general, I think it will be way easier than you image, once you have been pointed in the right direction. Take my advice with a grain of salt.I certainly hope so. As I have been learning lisp, I have fu
Dear Daniel and Team,
I think the code below, which I have tested on SBCL, illustrated a typical problem that Daniel Salama introduces. To paraphrase, you have a datatype (perhaps compound) which has a lot of slots; you have a GUI, perhaps web-based, that you use to both select or filter
I have another take on this for queries where you are looking for high
throughput but want to stick with the elephant persistence model (slot values
on disk) or your data won't fit in memory. I'll send this out when I get my
computer back to an Inet connection...
Robert and I have discussed a
This requires a philosophical response. In general, I think it will be way easier than
you image, once you have been pointed in the right direction. Take my advice with
a grain of salt.
First of all, ask yourself, what is the size of your dataset? Can you fit it all into memory?
If so, you
Hi all,
Coming from a Rails/MySQL world, we are having some difficulty trying
to comprehend/model/implement querying the database using dynamically
generated criteria.
For example, in the life we are trying to leave, we present the user
with advanced search screen, where they can select a
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