Hi,
I'm quite new with Solr.
I've searched for this but found no answer to my needs, which seems to
be quite common though.
Let's say I have three entities in my database (I have more than that
but it's for the sake of simplicity) :
File *------* Procedure *------* Organ
1 n 1 m
All three entities only contain an id (let's say "file_ref",
"procedure_ref" and "organ_ref") which are indexed and stored strings.
I'd like to be able to retrieve documents containing all three fields -
obviously since they are stored.
But if I query for everything ("*:*") I don't get (file count)*n*m
documents, only (file count) documents.
I'm using this kind of SQL query to import the data :
<dataConfig>
<!-- ... -->
<document name="files">
<entity name="file" pk="file_id" query="select file_ref as file_id
from file">
<field column="file_id" name="file_ref"/>
<entity name="procedure" pk="proc_id" query="select procedure_ref
as proc_id from procedure where file_fk = ${file_id}>
<field column="proc_id" name="procedure_ref"/>
<entity name="organ" pk="organ_id" query="select organ_ref as organ_id
from organ where procedure_fk = ${proc_id}>
<field column="organ_id" name="organ_ref"/>
</entity>
</document>
</dataConfig>
Any thoughts/links about how to properly denormalize - and obtain a
cartesian product - a relational database ?
Thanks.
--
Bruno Dusausoy
Software Engineer
YP5 Software
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