SOLR 中的多值属性分组

Question

I came across a problem where one of my column is multivalued. eg: value can be (11,22) (11,33) (11,55), (22,44), (22,99)

I want to perform a grouping operation that will yield:

• 11: count 3
• 22: count 3
• 33: 1
• 44: 1
• 55: 1
• 99: 1

Answer 1

Multivalued field cannot be grouped in Solr as yet.

Documentation :-

Support for grouping on a multi-valued field has not yet been implemented.

Answer 2

One indirect way to achieve this is to copy all the values corresponding to this field with space or some other character between them in a text field and then tokenize this field with that character(using whitespace tokenizer in case of spaces). Then you can use group by and I believe that this should work.