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kderusso · Mar 4, 2024 · fa66dec · fa66dec
1 parent 0a0ef48
commit fa66dec
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/...plugin/ml/src/main/java/org/elasticsearch/xpack/ml/queries/TextExpansionQueryBuilder.java b/...plugin/ml/src/main/java/org/elasticsearch/xpack/ml/queries/TextExpansionQueryBuilder.java
@@ -232,13 +232,15 @@ private QueryBuilder weightedTokensToQuery(String fieldName, TextExpansionResult
             weightedTokensQueryBuilder.boost(boost);
             return weightedTokensQueryBuilder;
         }
+        // Note: Weighted tokens queries were introduced in 8.13.0. To support cross cluster search against older versions,
+        // if no token pruning configuration is specified we fall back to a boolean query.
         var boolQuery = QueryBuilders.boolQuery();
         for (var weightedToken : textExpansionResults.getWeightedTokens()) {
             boolQuery.should(QueryBuilders.termQuery(fieldName, weightedToken.token()).boost(weightedToken.weight()));
         }
         boolQuery.minimumShouldMatch(1);
-        boolQuery.boost(this.boost);
-        boolQuery.queryName(this.queryName);
+        boolQuery.boost(boost);
+        boolQuery.queryName(queryName);
         return boolQuery;
     }