From 799a429a800c65a074e5ffa636ae0e33c0306aa3 Mon Sep 17 00:00:00 2001
From: Kathleen DeRusso <kathleen.derusso@elastic.co>
Date: Fri, 3 Oct 2025 16:34:53 -0400
Subject: [PATCH] Support explicit null chunking_settings in semantic_text
 field mappings

---
 output/schema/schema.json            | 22 +++++++++++++++++-----
 output/typescript/types.ts           |  2 +-
 specification/_types/mapping/core.ts |  2 +-
 3 files changed, 19 insertions(+), 7 deletions(-)

diff --git a/output/schema/schema.json b/output/schema/schema.json
index 418d1cfccd..737f4c863c 100644
--- a/output/schema/schema.json
+++ b/output/schema/schema.json
@@ -87516,11 +87516,23 @@
           "name": "chunking_settings",
           "required": false,
           "type": {
-            "kind": "instance_of",
-            "type": {
-              "name": "ChunkingSettings",
-              "namespace": "_types.mapping"
-            }
+            "kind": "union_of",
+            "items": [
+              {
+                "kind": "instance_of",
+                "type": {
+                  "name": "ChunkingSettings",
+                  "namespace": "_types.mapping"
+                }
+              },
+              {
+                "kind": "instance_of",
+                "type": {
+                  "name": "null",
+                  "namespace": "_builtins"
+                }
+              }
+            ]
           }
         },
         {
diff --git a/output/typescript/types.ts b/output/typescript/types.ts
index 4e691b87d7..7f3edc1801 100644
--- a/output/typescript/types.ts
+++ b/output/typescript/types.ts
@@ -6066,7 +6066,7 @@ export interface MappingSemanticTextProperty {
   inference_id?: Id
   search_inference_id?: Id
   index_options?: MappingSemanticTextIndexOptions
-  chunking_settings?: MappingChunkingSettings
+  chunking_settings?: MappingChunkingSettings | null
   fields?: Record<PropertyName, MappingProperty>
 }
 
diff --git a/specification/_types/mapping/core.ts b/specification/_types/mapping/core.ts
index eb5cb3c8f7..d327e9aa07 100644
--- a/specification/_types/mapping/core.ts
+++ b/specification/_types/mapping/core.ts
@@ -264,7 +264,7 @@ export class SemanticTextProperty {
    * chunking settings sent in the inference endpoint associated with inference_id. If chunking settings are updated,
    * they will not be applied to existing documents until they are reindexed.
    */
-  chunking_settings?: ChunkingSettings
+  chunking_settings?: ChunkingSettings | null
   /**
    * Multi-fields allow the same string value to be indexed in multiple ways for different purposes, such as one
    * field for search and a multi-field for sorting and aggregations, or the same string value analyzed by different analyzers.