Hi Anonymous!
Am Sonntag, 25. März 2012 22:36:09 UTC+2 schrieb be.the.water:
Does Elasticsearch support (or what are the options for) substring
search?Example "ball" or "bal" in basketball?
You have two options:
- Use ngrams through the ngram token filter:
Elasticsearch Platform — Find real-time answers at scale | Elastic.
See Wikipedia for details: n-gram - Wikipedia - Use the compound token filter
Elasticsearch Platform — Find real-time answers at scale | Elastic
(which I have contributed to Lucene btw.)
The ngrams are useful if you cannot provide a dictionary because you don't
know what type of documents you have to index. The downside is that they
use a lot of space in your indices. So you need to be careful here.
CU
Thomas