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Document restrictions on fuzzy matching when using synonyms (#40783)

Relates to #25518
Alan Woodward 6 years ago
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  1. 4 0
      docs/reference/query-dsl/match-query.asciidoc

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docs/reference/query-dsl/match-query.asciidoc

@@ -75,6 +75,10 @@ rewritten.
 Fuzzy transpositions (`ab` -> `ba`) are allowed by default but can be disabled
 by setting `fuzzy_transpositions` to `false`.
 
+Note that fuzzy matching is not applied to terms with synonyms, as under the hood
+these terms are expanded to a special synonym query that blends term frequencies,
+which does not support fuzzy expansion.
+
 [source,js]
 --------------------------------------------------
 GET /_search