Elasticsearch NEST, case sensitive multi-field

Question

I struggle to make this multi-field setting to case sensitive, what's the missing piece? Thanks in advance!!.

   targetClientProperties.MapFluent< CMSDocument >
    ( m => m. MapFromAttributes() 
           .Properties( p => p.MultiField( mf => mf
                                    .Name ( n => n.Hash )
                                    .Fields(fs => fs
                                            .String(s => s.Name(t => t.PropertyHash))
                                            .String(s => s.Name(t => t.TileHash))
    ))));

Greg Marzouka · Accepted Answer · 2014-06-02 17:00:14Z

2

Set the fields to not_analyzed:

targetClientProperties.MapFluent< CMSDocument >
( m => m. MapFromAttributes() 
       .Properties( p => p.MultiField( mf => mf
                                .Name ( n => n.Hash )
                                .Fields(fs => fs
                                        .String(s => s.Name(t => t.PropertyHash).Index(FieldIndexOption.not_analyzed))
                                        .String(s => s.Name(t => t.TileHash).Index(FieldIndexOption.not_analyzed))
))));

answered Jun 2, 2014 at 17:00

Greg Marzouka

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2 Comments

Alejandro Over a year ago

Thanks!!, so it means I don't need a multi-field setting to have a case sensitive field, I already have some "not_analyzed" fields attributes, but I run "query_string" or "term" searches with case matches, I cannot find any of them, I don't understand how come, how the query should looks like?

Greg Marzouka Over a year ago

No problem. Yes, that is correct. Multi fields are useful for when you want to index/search the same field in different ways. For instance, if you wanted to facet on the exact value of a field, but still wanted to perform analysis to enable full-text search on that same field. The Elasticsearch getting started guide does a very good job of explaining all of this, check out the mapping and analysis section in particular.

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