Always apply lenient

Author: svilen-mihaylov-elastic

x-pack/plugin/esql/qa/testFixtures/src/main/resources/multi-match-function.csv-spec

@@ -43,12 +43,11 @@ testMultiMatchWithOptionsMinimumShouldMatch
 required_capability: multi_match_unified_function
 
 from books 
-| where match(title, description, "here back again", {"minimum_should_match": 2, "operator": "OR"})
+| where match(title, description, "there back again", {"minimum_should_match": 2, "operator": "AND"})
 | sort book_no
 | keep title;
 
 title:text                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
-My First 100 Words in Spanish/English (My First 100 Words Pull-Tab Book)
 The Hobbit or There and Back Again                                                                                           
 ;
 

x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/expression/function/fulltext/Match.java

@@ -11,6 +11,7 @@
 import org.elasticsearch.common.io.stream.NamedWriteableRegistry;
 import org.elasticsearch.common.io.stream.StreamInput;
 import org.elasticsearch.common.io.stream.StreamOutput;
+import org.elasticsearch.index.query.MatchQueryBuilder;
 import org.elasticsearch.index.query.QueryBuilder;
 import org.elasticsearch.xpack.esql.capabilities.PostAnalysisPlanVerificationAware;
 import org.elasticsearch.xpack.esql.common.Failure;
@@ -512,6 +513,7 @@ protected Query translate(TranslatorHandler handler) {
             return new MultiMatchQuery(source(), Objects.toString(queryAsObject()), fieldsWithBoost, options);
         } else {
             // Translate to Match when having exactly one field.
+            options.put(MatchQueryBuilder.LENIENT_FIELD.getPreferredName(), true);
             return new MatchQuery(source(), fieldsWithBoost.keySet().stream().findFirst().get(), queryAsObject(), options);
         }
     }