manuel aldana wrote:
hi,
I am having queries:
+a b
a b
I always wondered why the + operator did not work. Looking at the
http://localhost:8983/solr/admin/analysis.jsp analysis trace the query
analzyer indeed is removing the + through the
WordDelemiterFilterFactory. So I removed this filter (btw: why is this
the default setting, which I think is a bit dangerous because the
special + - operators are thus removed).
To debug quert parser, use FULL INTERFACE admin form
(http://localhost:8983/solr/admin/form.jsp)
and check Debug: enable and see debug info. You cannot use analysis.jsp
for this purpose
because it doesn't use query parser.
Still '+a b' matches documents which have no 'a' inside the field. Now
I guess solr is handling the '+' as a normal match character and not
as an lucene (required) operator at all? Is this correct. If so, why
is this lucene operator overridden? Maybe I need to escape the + for
solr, so it treats it as an operator?
thanks.
Solr should use lucene query parser as long as you never explicitly use
query parser
other than lucene through defType, localParams, etc...
I'm just guessing 'a' was filtered out by StopFilter?
With example schema.xml, you can see:
http://localhost:8983/solr/select?q=%2Ba+b&debugQuery=on
<str name="rawquerystring">+a b</str>
<str name="querystring">+a b</str>
<str name="parsedquery">text:b</str>
<str name="parsedquery_toString">text:b</str>
http://localhost:8983/solr/select?q=cat%3A(%2Ba+b)&debugQuery=on
<str name="rawquerystring">cat:(+a b)</str>
<str name="querystring">cat:(+a b)</str>
<str name="parsedquery">+cat:a cat:b</str>
<str name="parsedquery_toString">+cat:a cat:b</str>
Koji
