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[DOCS] Replace mention of string field type with text and keyword 

Closes #25713
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javanna 2017-09-25 11:10:13 +02:00 committed by Luca Cavanna
parent cd2a4372b4
commit dee2ae1023
1 changed files with 4 additions and 3 deletions
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7
docs/reference/query-dsl/mlt-query.asciidoc
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@ -111,9 +111,10 @@ analyzes it, usually using the same analyzer at the field, then selects the
top K terms with highest tf-idf to form a disjunctive query of these terms.
IMPORTANT: The fields on which to perform MLT must be indexed and of type
`string`. Additionally, when using `like` with documents, either `_source`
must be enabled or the fields must be `stored` or store `term_vector`. In
order to speed up analysis, it could help to store term vectors at index time.
`text` or `keyword``. Additionally, when using `like` with documents, either
`_source` must be enabled or the fields must be `stored` or store
`term_vector`. In order to speed up analysis, it could help to store term
vectors at index time.
For example, if we wish to perform MLT on the "title" and "tags.raw" fields,
we can explicitly store their `term_vector` at index time. We can still