Hi Just ran into this bug while playing around with 3.6. Using edismax and entering a a search like this "(text:foobar)" causes the query parser to mangle the query as shown by the results below. Adding a space after the first paren solves this. I checked 3.6.1 and get the same issue. I recall an issue like this in 3.6.0 but thought it was quashed in 3.6.1?
<response> <lst name="responseHeader"> <int name="status">0</int> <int name="QTime">2</int> <lst name="params"> <str name="mm">1</str> <str name="sort">score desc, prefix_sort desc</str> <str name="indent">on</str> <str name="qf">number^5 title^3 text</str> <str name="wt">standard</str> <str name="version">2.2</str> <str name="rows">10</str> <str name="defType">edismax</str> <str name="pf">text^2</str> <str name="fl">*,score</str> <str name="debugQuery">on</str> <str name="start">0</str> <str name="q">(text:foobar)</str> <str name="qt">search</str> <str name="ps">100000</str> </lst> </lst> <result name="response" numFound="0" start="0" maxScore="0.0"/> <lst name="debug"> <str name="rawquerystring">(text:foobar)</str> <str name="querystring">(text:foobar)</str> <str name="parsedquery"> +DisjunctionMaxQuery((text:textfoobar | title:textfoobar^3.0 | number:text:foobar^5.0)) () </str> <str name="parsedquery_toString"> +(text:textfoobar | title:textfoobar^3.0 | number:text:foobar^5.0) () </str> <lst name="explain"/> <str name="QParser">ExtendedDismaxQParser</str> Cheers François