Slightly off-topic question: what about when you are searching in-memory elements? Suppose I contructed 100 xml trees in memory that were each 1K (just for example), I put them in a sequence, and then I to use XPath against the sequences of trees to find all values of a particular attribute. None of the trees are in the db a consequently are not in the index. How does performance compare to a situation where these trees were saved as docs in the DB? Is there a point where for speed considerations you would want to save the trees to the DB just so they could be indexed?
Thanks, Ryan > From: kelly.stir...@marklogic.com > To: general@developer.marklogic.com > Date: Thu, 5 May 2011 04:41:22 -0700 > Subject: Re: [MarkLogic Dev General] query for search in elements and > attributes > > MarkLogic indexes attributes, and you can query on them, but there are a few > things to keep in mind: > > 1) attributes are indexed with their parent elements - you can't search > across all attributes independent of their parent elements. So, you can't do > */@foo and expect it to be resolved out of the indexes. You can still do it, > and the results will be accurate, but the performance can be less than ideal. > (there may be an exception for xs:id, but I don't recall) > > 2) attribute values are not searched when using cts:word query. Neither are > processing instructions or comments, for that matter (but those aren't even > indexed). Google doesn't index attributes either. Most of the time attributes > contain values that are not to be searched by default. MarkLogic indexes them > so they are still searchable. > > 3) You can search on specific attributes with > cts:element-attribute-word-query. I believe in the SearchAPI you can use a > custom constraint. It is possible to search attributes with the SearchAPI by > default, but you would need to explicitly enumerate all the element/attribute > pairs you want to search, and that's probably not what you want to do. > > Kelly > > > > Message: 2 > Date: Thu, 5 May 2011 15:44:45 +0530 > From: Rojan K K <rojankadapur...@gmail.com> > Subject: [MarkLogic Dev General] query for search in elements and > attributes > To: General@developer.marklogic.com > Message-ID: <BANLkTi=wj5zmmx4-gsb8acuzxhzvkjv...@mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > Hi, > > i am doing a search operation in which i will be passing input string to the > search:parse() API and whose result is applying for search. > but i would like make my search query to be performed in attributes values > also. > for eg: when i give '(test) OR (test2) AND (ID123)' as my serach > query(ID123 is an attribute value) > search :parse will be forming query as follows <cts:or-query qtextjoin="OR" > strength="10"> > - > <cts:word-query qtextref="cts:text"> > <cts:text>test</cts:text> > </cts:word-query> > - > <cts:and-query qtextjoin="AND" strength="20"> > - > <cts:word-query qtextref="cts:text"> > <cts:text>test2</cts:text> > </cts:word-query> > - > <cts:word-query qtextref="cts:text"> > <cts:text>ID123</cts:text> > </cts:word-query> > </cts:and-query> > </cts:or-query> > > and i am giving this for cts:search query,but it is not returning any result > for records with the specified attribute. > > Is there any way to search in attributes also using search:parse and > cts:search APIs. > _______________________________________________ > General mailing list > General@developer.marklogic.com > http://developer.marklogic.com/mailman/listinfo/general
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