Disable compression for geo_shape type

Author: parkertimmins

server/src/main/java/org/elasticsearch/index/codec/PerFieldFormatSupplier.java

@@ -41,6 +41,7 @@
 public class PerFieldFormatSupplier {
 
     private static final Set<String> INCLUDE_META_FIELDS;
+    private static final Set<String> EXCLUDE_MAPPER_TYPES;
 
     static {
         // TODO: should we just allow all fields to use tsdb doc values codec?
@@ -53,6 +54,7 @@ public class PerFieldFormatSupplier {
         // Don't the include _recovery_source_size and _recovery_source fields, since their values can be trimmed away in
         // RecoverySourcePruneMergePolicy, which leads to inconsistencies between merge stats and actual values.
         INCLUDE_META_FIELDS = Collections.unmodifiableSet(includeMetaField);
+        EXCLUDE_MAPPER_TYPES = Set.of("geo_shape");
     }
 
     private static final DocValuesFormat docValuesFormat = new Lucene90DocValuesFormat();
@@ -138,6 +140,10 @@ boolean useTSDBDocValuesFormat(final String field) {
             return false;
         }
 
+        if (excludeMapperTypes(field)) {
+            return false;
+        }
+
         return mapperService != null
             && (isTimeSeriesModeIndex() || isLogsModeIndex())
             && mapperService.getIndexSettings().isES87TSDBCodecEnabled();
@@ -147,6 +153,14 @@ private boolean excludeFields(String fieldName) {
         return fieldName.startsWith("_") && INCLUDE_META_FIELDS.contains(fieldName) == false;
     }
 
+    private boolean excludeMapperTypes(String fieldName) {
+        var typeName = getMapperType(fieldName);
+        if (typeName == null) {
+            return false;
+        }
+        return EXCLUDE_MAPPER_TYPES.contains(getMapperType(fieldName));
+    }
+
     private boolean isTimeSeriesModeIndex() {
         return mapperService != null && IndexMode.TIME_SERIES == mapperService.getIndexSettings().getMode();
     }
@@ -155,4 +169,13 @@ private boolean isLogsModeIndex() {
         return mapperService != null && IndexMode.LOGSDB == mapperService.getIndexSettings().getMode();
     }
 
+    String getMapperType(final String field) {
+        if (mapperService != null) {
+            Mapper mapper = mapperService.mappingLookup().getMapper(field);
+            if (mapper != null) {
+                return mapper.typeName();
+            }
+        }
+        return null;
+    }
 }