this test case here will help in understanding the usage: https://github.com/apache/lucene-solr/blob/branch_7_2/solr/solrj/src/test/org/apache/solr/client/solrj/io/stream/eval/AppendEvaluatorTest.java <https://github.com/apache/lucene-solr/blob/branch_7_2/solr/solrj/src/test/org/apache/solr/client/solrj/io/stream/eval/AppendEvaluatorTest.java>
> On Jun 27, 2018, at 1:07 PM, Aroop Ganguly <aroopgang...@icloud.com> wrote: > > I think u can use the append evaluator > https://github.com/apache/lucene-solr/blob/master/solr/solrj/src/java/org/apache/solr/client/solrj/io/eval/AppendEvaluator.java > > <https://github.com/apache/lucene-solr/blob/master/solr/solrj/src/java/org/apache/solr/client/solrj/io/eval/AppendEvaluator.java> > > >> On Jun 27, 2018, at 12:58 PM, Pratik Patel <pra...@semandex.net> wrote: >> >> Hello, >> >> Is there a function which can be used in Streaming Expressions to >> concatenate two strings? I want to use it just like add(1,2) in a Streaming >> Expression. Essentially, I want to achieve something as follows. >> >> select( >> search(..), >> conceptid as foo, >> storeid as bar >> concat(foo,bar) as id >> ) >> >> I can use merge() function but my streaming expression is quite complex and >> that will make it even more complex as that would be a round about way of >> doing it. Any idea how this can be achieved? >> >> Thanks, >> Pratik >
