Change to a mapper feature rather than search feature

Author: thecoop

rest-api-spec/src/yamlRestTest/resources/rest-api-spec/test/search.vectors/41_knn_search_bbq_hnsw.yml

@@ -340,7 +340,7 @@ setup:
 ---
 "Test index configured rescore vector with no off-heap scoring":
   - requires:
-      cluster_features: ["search.vectors.bbq_offheap_rescoring"]
+      cluster_features: ["mapper.vectors.bbq_offheap_rescoring"]
       reason: Needs bbq_offheap_rescoring feature
   - skip:
       features: "headers"

server/src/main/java/org/elasticsearch/index/mapper/MapperFeatures.java

@@ -47,6 +47,7 @@ public class MapperFeatures implements FeatureSpecification {
     static final NodeFeature BBQ_DISK_SUPPORT = new NodeFeature("mapper.bbq_disk_support");
     static final NodeFeature SEARCH_LOAD_PER_SHARD = new NodeFeature("mapper.search_load_per_shard");
     static final NodeFeature PATTERNED_TEXT = new NodeFeature("mapper.patterned_text");
+    static final NodeFeature BBQ_OFFHEAP_RESCORING = new NodeFeature("mapper.vectors.bbq_offheap_rescoring");
 
     @Override
     public Set<NodeFeature> getTestFeatures() {
@@ -80,7 +81,8 @@ public Set<NodeFeature> getTestFeatures() {
             BBQ_DISK_SUPPORT,
             SEARCH_LOAD_PER_SHARD,
             SPARSE_VECTOR_INDEX_OPTIONS_FEATURE,
-            PATTERNED_TEXT
+            PATTERNED_TEXT,
+            BBQ_OFFHEAP_RESCORING
         );
     }
 }

server/src/main/java/org/elasticsearch/search/SearchFeatures.java

@@ -33,7 +33,6 @@ public Set<NodeFeature> getFeatures() {
     static final NodeFeature MULTI_MATCH_CHECKS_POSITIONS = new NodeFeature("search.multi.match.checks.positions");
     public static final NodeFeature BBQ_HNSW_DEFAULT_INDEXING = new NodeFeature("search.vectors.mappers.default_bbq_hnsw");
     public static final NodeFeature SEARCH_WITH_NO_DIMENSIONS_BUGFIX = new NodeFeature("search.vectors.no_dimensions_bugfix");
-    public static final NodeFeature BBQ_OFFHEAP_RESCORING = new NodeFeature("search.vectors.bbq_offheap_rescoring");
 
     @Override
     public Set<NodeFeature> getTestFeatures() {
@@ -44,8 +43,7 @@ public Set<NodeFeature> getTestFeatures() {
             INT_SORT_FOR_INT_SHORT_BYTE_FIELDS,
             MULTI_MATCH_CHECKS_POSITIONS,
             BBQ_HNSW_DEFAULT_INDEXING,
-            SEARCH_WITH_NO_DIMENSIONS_BUGFIX,
-            BBQ_OFFHEAP_RESCORING
+            SEARCH_WITH_NO_DIMENSIONS_BUGFIX
         );
     }
 }