The concat function was changed to an evaluator. An example of the new
syntax is here:
https://github.com/apache/lucene-solr/blob/visual-guide/solr/solr-ref-guide/src/loading.adoc#unique-ids
Sorry for confusion the language should be settling down now with very of
these types of changes happening
Greetings.
A follow-up to the below with my findings.
The problem seems to be that the binding of “concat” on the
StreamFactory.functionNames maps to ConcatEvaluator in 8.4.1, while in 8.2 it
mapped to ConcatOperation.
The mapping is defined in the file Lang.java
Branch_8_4:
Branch_8_2:
The
