: Is there a way to construct a query that needs two different parsers?
: Example:
: q={!xmlparser}<SpanFirst fieldName="text_en" end="5"
boost="1.2"><SpanTerm>Hello</SpanTerm></SpanFirst>
: AND
: q={!edismax}text_en:"foo bar"~4
The easies way to do what you're asking about would be to choose one of
those queries for "storking" purposes, and put the other one in an "fq"
simply for filtering.
But you can build a single compelx query using multiple parsers by
leveraging the "lucene" parser's support for nesting queries -- ie: in a
larger boolean query -- and then use local param variables to reference
your other param names...
q=({!edismax qf=text_en v=$my_main_query} OR {!xmlparser v=$my_span_query})
my_main_query="foo bar"~4
my_span_query=<SpanFirst fieldName="text_en"
end="5"boost="1.2"><SpanTerm>Hello</SpanTerm></SpanFirst>
...the important bits that tend to trip people up is to make sure you
don't start your query string with the local param syntax of another
parser, and that you don't pass the input of your nested parsers "inline"
if they contain white space .. hence the parens above and the use of the
'v' local param.
If you tried to do the same thing like either of these queries below, it
wouldn't work because it would confuse the parsing logic...
bad_q1={!edismax qf=text_en v=$my_main_query} OR {!xmlparser v=$my_span_query}
bad_q2=({!edismax qf=text_en}"foo bar"~4 OR {!xmlparser v=$my_span_query})
in "bad_q1" solr would think you wanted the *entire* param value
(including the "OR {!xmlparser..." passed to the "edismax" parsers
in "bad_q2" the nested edismax parser would only be given the input '"foo"
.. and not the ' bar"~4' bit, because the outer most (implicit) lucene
parser doens't understand how much of the input you intended for the
nested parser.
-Hoss
http://www.lucidworks.com/
