json - solr: facet search multivalued field containing the same value multiple times -


i have field in solr document (in json):

somefield = [value1, value2, value3, value4,...];

i want know how many documents there containing each of values.

the facet search executing works there 1 problem: values represent hierarchy (denoted sequence) , same value appear on different levels in hierarchy (representing different entity).

e.g.

(in document1) somefield = [value1, value2, value3, value4]; (in document2) somefield = [value1, value3, value4, value5]; (in document3) somefield = [value1, value3, value3, value4];

so result should looke this:

value1 = 3 value2 = 1 value3 = 2 (level 2) value3 = 2 (level 3) value4 = 1 (level 3) value4 = 2 (level 4) value5 = 1

on inserting documents, can see inserting

value1, value3, value3

is inserted correctly (solr doesn't convert value1, value3)

how can achieve faceting, i. e. make solr treat each level of somefiled separately , not count value3 1 field?

you can't. token token when comes faceting.

you can use secondary field , add metainformation tokens when indexing (from own code), contain level token on.

so example above, you'd have second field named somefield_indexed content:

[1_value1, 2_value2, 3_value3, 4_value4] [1_value1, 2_value3, 3_value4, 4_value5] [1_value1, 2_value3, 3_value3, 4_value4]

the resulting facet be:

1_value1: 3 2_value2: 1 2_value3: 2 3_value3: 2 3_value4: 1 4_value4: 2 4_value5: 1

remove , including first _ when you're displaying contents facets. it'll allow filter on location of value (i.e. display documents have value3 in second location, using fq=somefield_indexed:2_value3.


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