Simplify makeFieldConfig (#126021)

Author: idegtiarenko

x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/stats/SearchContextStats.java

@@ -95,20 +95,19 @@ private FieldConfig makeFieldConfig(String field) {
         // since if it's missing, deleted documents won't change that
         for (SearchExecutionContext context : contexts) {
             if (context.isFieldMapped(field)) {
-                exists = exists || true;
-                MappedFieldType type = context.getFieldType(field);
-                indexed = indexed && type.isIndexed();
-                hasDocValues = hasDocValues && type.hasDocValues();
-                if (type instanceof TextFieldMapper.TextFieldType t) {
-                    hasExactSubfield = hasExactSubfield && t.canUseSyntheticSourceDelegateForQuerying();
-                } else {
-                    hasExactSubfield = false;
-                }
+                var type = context.getFieldType(field);
+                exists |= true;
+                indexed &= type.isIndexed();
+                hasDocValues &= type.hasDocValues();
+                hasExactSubfield &= type instanceof TextFieldMapper.TextFieldType t && t.canUseSyntheticSourceDelegateForQuerying();
             } else {
                 indexed = false;
                 hasDocValues = false;
                 hasExactSubfield = false;
             }
+            if (exists && indexed == false && hasDocValues == false && hasExactSubfield == false) {
+                break;
+            }
         }
         if (exists == false) {
             // if it does not exist on any context, no other settings are valid