Support matched-elements-only for array and wset fields in streaming search.

4 files changed, 15 insertions, 8 deletions

diff --git a/config-model/src/main/java/com/yahoo/searchdefinition/processing/MatchedElementsOnlyResolver.java b/config-model/src/main/java/com/yahoo/searchdefinition/processing/MatchedElementsOnlyResolver.java
index d86ed265b77..77064038053 100644
--- a/config-model/src/main/java/com/yahoo/searchdefinition/processing/MatchedElementsOnlyResolver.java
+++ b/config-model/src/main/java/com/yahoo/searchdefinition/processing/MatchedElementsOnlyResolver.java
@@ -48,11 +48,13 @@ public class MatchedElementsOnlyResolver extends Processor {
                 if (isComplexFieldWithOnlyStructFieldAttributes(sourceField)) {
                     field.setTransform(SummaryTransform.MATCHED_ATTRIBUTE_ELEMENTS_FILTER);
                 }
-            } else if (isSupportedAttributeField(sourceField)) {
-                field.setTransform(SummaryTransform.MATCHED_ATTRIBUTE_ELEMENTS_FILTER);
+            } else if (isSupportedMultiValueField(sourceField)) {
+                if (sourceField.doesAttributing()) {
+                    field.setTransform(SummaryTransform.MATCHED_ATTRIBUTE_ELEMENTS_FILTER);
+                }
             } else if (validate) {
                 fail(summary, field, "'matched-elements-only' is not supported for this field type. " +
-                        "Supported field types are: array attribute, weighted set attribute, " +
+                        "Supported field types are: array of primitive, weighted set of primitive, " +
                         "array of simple struct, map of primitive type to simple struct, " +
                         "and map of primitive type to primitive type");
             }
@@ -60,10 +62,9 @@ public class MatchedElementsOnlyResolver extends Processor {
         // else case is handled in SummaryFieldsMustHaveValidSource
     }
 
-    private boolean isSupportedAttributeField(ImmutableSDField sourceField) {
+    private boolean isSupportedMultiValueField(ImmutableSDField sourceField) {
         var type = sourceField.getDataType();
-        return sourceField.doesAttributing() &&
-                (isArrayOfPrimitiveType(type) || isWeightedsetOfPrimitiveType(type));
+        return (isArrayOfPrimitiveType(type) || isWeightedsetOfPrimitiveType(type));
     }
 
     private boolean isArrayOfPrimitiveType(DataType type) {
diff --git a/config-model/src/test/java/com/yahoo/searchdefinition/processing/MatchedElementsOnlyResolverTestCase.java b/config-model/src/test/java/com/yahoo/searchdefinition/processing/MatchedElementsOnlyResolverTestCase.java
index 0ef696df6cf..ab98706fd44 100644
--- a/config-model/src/test/java/com/yahoo/searchdefinition/processing/MatchedElementsOnlyResolverTestCase.java
+++ b/config-model/src/test/java/com/yahoo/searchdefinition/processing/MatchedElementsOnlyResolverTestCase.java
@@ -149,10 +149,10 @@ public class MatchedElementsOnlyResolverTestCase {
         exceptionRule.expect(IllegalArgumentException.class);
         exceptionRule.expectMessage("For search 'test', document summary 'default', summary field 'my_field': " +
                 "'matched-elements-only' is not supported for this field type. " +
-                "Supported field types are: array attribute, weighted set attribute, " +
+                "Supported field types are: array of primitive, weighted set of primitive, " +
                 "array of simple struct, map of primitive type to simple struct, " +
                 "and map of primitive type to primitive type");
-        buildSearch(joinLines("field my_field type array<string> {",
+        buildSearch(joinLines("field my_field type string {",
                 "  indexing: summary",
                 "  summary: matched-elements-only",
                 "}"));
diff --git a/streamingvisitors/src/vespa/searchvisitor/matching_elements_filler.cpp b/streamingvisitors/src/vespa/searchvisitor/matching_elements_filler.cpp
index fe717313ca4..d51bd57e942 100644
--- a/streamingvisitors/src/vespa/searchvisitor/matching_elements_filler.cpp
+++ b/streamingvisitors/src/vespa/searchvisitor/matching_elements_filler.cpp
@@ -83,6 +83,9 @@ Matcher::select_query_nodes(const MatchingElementsFields& fields, const QueryNod
         if (fields.has_struct_field(query_term->getIndex())) {
             _sub_field_terms.emplace_back(fields.get_enclosing_field(query_term->getIndex()), query_term);
         }
+        if (fields.has_field(query_term->getIndex())) {
+            _sub_field_terms.emplace_back(query_term->getIndex(), query_term);
+        }
     } else if (auto and_not = as<AndNotQueryNode>(query_node)) {
         select_query_nodes(fields, *(*and_not)[0]);
     } else if (auto intermediate = as<QueryConnector>(query_node)) {
diff --git a/vsm/src/vespa/vsm/vsm/docsumconfig.cpp b/vsm/src/vespa/vsm/vsm/docsumconfig.cpp
index 2512bea26df..fb25df83ded 100644
--- a/vsm/src/vespa/vsm/vsm/docsumconfig.cpp
+++ b/vsm/src/vespa/vsm/vsm/docsumconfig.cpp
@@ -26,6 +26,9 @@ void populate_fields(MatchingElementsFields& fields, VsmfieldsConfig& fields_con
         if (spec.name.substr(0, prefix.size()) == prefix) {
             fields.add_mapping(field_name, spec.name);
         }
+        if (spec.name == field_name) {
+            fields.add_field(field_name);
+        }
     }
 }