Hi,
Elasticsearch (and Lucene ?) has two stemmer token filters: the snowball one and the regular one.
It seems in my tests that the regular stemmer is under the hood the snowball stemmer.
It this really the case ?
For instance, these two settings give the same stemming in my tests:
{ "type": "stemmer", "language": "italian" }
{ "type": "snowball", "language": "italian" }
For example, as per the doc, the type:stemmer with language italian seems to be a snowball stemmer as the link goes to snowballstem.org.
So question: are the snowball and the regular stemmer the same for some language config ?
I have the case with italian and french (as in the screenshot).