Solr - Multiple types for the same field

Question

Is it possible to have a field in schema.xml that is of type text_fr or text_ar, because this field can be in french or in arabic?

Or should I regroup the definitions of text_fr or text_ar in the same custom type?

Answer 1

You can use Copyfields to copy the source to multiple fields with different anaylysis.

Also,

<copyField source="text" dest="text_fr" />
<copyField source="text" dest="text_ar" />

Answer 2

You should look into the Language Detection support that Solr provides.

This feature adds the ability to detect the language of a document before indexing and then make appropriate decisions about analysis, etc.

A little bit better description of this support and a comparison of the two supported detection types can be found in Solr Reference Guide - Detecting Languages During Indexing