Yeah, you can't do that. You'll need to keep a copy of whichever value from
the multi-valued field you wish to be considered "the" value in a separate,
non-multi-valued field. Possibly using an update processor, such as one of:
FirstFieldValueUpdateProcessorFactory, LastFieldValueUpdateProcessorFactory,
MaxFieldValueUpdateProcessorFactory, MinFieldValueUpdateProcessorFactory
-- Jack Krupansky
-----Original Message-----
From: world hello
Sent: Thursday, May 23, 2013 7:50 PM
To: solr-user@lucene.apache.org
Subject: FW: howto: get the value from a multivalued field?
hi, all -
how can I retrieve the value out of a multivalued field in a customized
function query?I want to implement a function query whose first parameter is
a multi-value fileld, from which values are retrieved and manipulated.
however, I used the code but get exceptions - "can not use FieldCache on
multivalued field"
/////////////////////////////public ValueSource parse(FunctionQParser fp)
throws ParseException {
try { ValueSource vs = fp.parseValueSource(); }
catch (...) { }////////////////////////////
Thanks.
- Frank
