I have an index for occupations (identifier + occupation):
Ok, I have discovered the source problem. I have opened my SQL load script with VI, in hex mode.
This is the hex content for 'Agrónomo' in an INSERT statement: 41 67 72 6f cc 81 6e 6f 6d 6f.
6f cc 81!!!! This is "o COMBINING ACUTE ACCENT" UTF code!!!!
So that's the problem... It must be "c3 b3"... I get the literals copy/pasting from a web page, so the source characters on the origin was the problem.
Thanks to both of you, because I have learning more about SOLR's soul.
Regards.