diff --git a/output/openapi/elasticsearch-openapi.json b/output/openapi/elasticsearch-openapi.json
index 66495ab241..36528ee2ed 100644
--- a/output/openapi/elasticsearch-openapi.json
+++ b/output/openapi/elasticsearch-openapi.json
@@ -8018,6 +8018,16 @@
               "type": "string"
             },
             "style": "form"
+          },
+          {
+            "in": "query",
+            "name": "drop_null_columns",
+            "description": "Should columns that are entirely `null` be removed from the `columns` and `values` portion of the results?\nDefaults to `false`. If `true` then the response will include an extra section under the name `all_columns` which has the name of all columns.",
+            "deprecated": false,
+            "schema": {
+              "type": "boolean"
+            },
+            "style": "form"
           }
         ],
         "requestBody": {
@@ -8043,9 +8053,12 @@
                     "description": "To avoid any attempts of hacking or code injection, extract the values in a separate list of parameters. Use question mark placeholders (?) in the query string for each of the parameters.",
                     "type": "array",
                     "items": {
-                      "$ref": "#/components/schemas/_types:ScalarValue"
+                      "$ref": "#/components/schemas/_types:FieldValue"
                     }
                   },
+                  "profile": {
+                    "type": "boolean"
+                  },
                   "query": {
                     "description": "The ES|QL query API accepts an ES|QL query string in the query parameter, runs it, and returns the results.",
                     "type": "string"
diff --git a/output/openapi/elasticsearch-serverless-openapi.json b/output/openapi/elasticsearch-serverless-openapi.json
index 82c035668b..a13f7881b5 100644
--- a/output/openapi/elasticsearch-serverless-openapi.json
+++ b/output/openapi/elasticsearch-serverless-openapi.json
@@ -5340,6 +5340,16 @@
               "type": "string"
             },
             "style": "form"
+          },
+          {
+            "in": "query",
+            "name": "drop_null_columns",
+            "description": "Should columns that are entirely `null` be removed from the `columns` and `values` portion of the results?\nDefaults to `false`. If `true` then the response will include an extra section under the name `all_columns` which has the name of all columns.",
+            "deprecated": false,
+            "schema": {
+              "type": "boolean"
+            },
+            "style": "form"
           }
         ],
         "requestBody": {
@@ -5365,9 +5375,12 @@
                     "description": "To avoid any attempts of hacking or code injection, extract the values in a separate list of parameters. Use question mark placeholders (?) in the query string for each of the parameters.",
                     "type": "array",
                     "items": {
-                      "$ref": "#/components/schemas/_types:ScalarValue"
+                      "$ref": "#/components/schemas/_types:FieldValue"
                     }
                   },
+                  "profile": {
+                    "type": "boolean"
+                  },
                   "query": {
                     "description": "The ES|QL query API accepts an ES|QL query string in the query parameter, runs it, and returns the results.",
                     "type": "string"
diff --git a/output/schema/schema-serverless.json b/output/schema/schema-serverless.json
index fda40b4110..6a0af2891a 100644
--- a/output/schema/schema-serverless.json
+++ b/output/schema/schema-serverless.json
@@ -17839,12 +17839,23 @@
               "value": {
                 "kind": "instance_of",
                 "type": {
-                  "name": "ScalarValue",
+                  "name": "FieldValue",
                   "namespace": "_types"
                 }
               }
             }
           },
+          {
+            "name": "profile",
+            "required": false,
+            "type": {
+              "kind": "instance_of",
+              "type": {
+                "name": "boolean",
+                "namespace": "_builtins"
+              }
+            }
+          },
           {
             "description": "The ES|QL query API accepts an ES|QL query string in the query parameter, runs it, and returns the results.",
             "name": "query",
@@ -17896,9 +17907,22 @@
               "namespace": "_builtins"
             }
           }
+        },
+        {
+          "description": "Should columns that are entirely `null` be removed from the `columns` and `values` portion of the results?\nDefaults to `false`. If `true` then the response will include an extra section under the name `all_columns` which has the name of all columns.",
+          "name": "drop_null_columns",
+          "required": false,
+          "serverDefault": false,
+          "type": {
+            "kind": "instance_of",
+            "type": {
+              "name": "boolean",
+              "namespace": "_builtins"
+            }
+          }
         }
       ],
-      "specLocation": "esql/query/QueryRequest.ts#L24-L65"
+      "specLocation": "esql/query/QueryRequest.ts#L24-L76"
     },
     {
       "body": {
diff --git a/output/schema/schema.json b/output/schema/schema.json
index d52959ca76..eecd35babf 100644
--- a/output/schema/schema.json
+++ b/output/schema/schema.json
@@ -112739,12 +112739,23 @@
               "value": {
                 "kind": "instance_of",
                 "type": {
-                  "name": "ScalarValue",
+                  "name": "FieldValue",
                   "namespace": "_types"
                 }
               }
             }
           },
+          {
+            "name": "profile",
+            "required": false,
+            "type": {
+              "kind": "instance_of",
+              "type": {
+                "name": "boolean",
+                "namespace": "_builtins"
+              }
+            }
+          },
           {
             "description": "The ES|QL query API accepts an ES|QL query string in the query parameter, runs it, and returns the results.",
             "name": "query",
@@ -112796,9 +112807,22 @@
               "namespace": "_builtins"
             }
           }
+        },
+        {
+          "description": "Should columns that are entirely `null` be removed from the `columns` and `values` portion of the results?\nDefaults to `false`. If `true` then the response will include an extra section under the name `all_columns` which has the name of all columns.",
+          "name": "drop_null_columns",
+          "required": false,
+          "serverDefault": false,
+          "type": {
+            "kind": "instance_of",
+            "type": {
+              "name": "boolean",
+              "namespace": "_builtins"
+            }
+          }
         }
       ],
-      "specLocation": "esql/query/QueryRequest.ts#L24-L65"
+      "specLocation": "esql/query/QueryRequest.ts#L24-L76"
     },
     {
       "body": {
diff --git a/output/schema/validation-errors.json b/output/schema/validation-errors.json
index c38a3e01af..8e534b8888 100644
--- a/output/schema/validation-errors.json
+++ b/output/schema/validation-errors.json
@@ -652,9 +652,7 @@
       "response": []
     },
     "esql.query": {
-      "request": [
-        "Request: missing json spec query parameter 'drop_null_columns'"
-      ],
+      "request": [],
       "response": [
         "type_alias definition _types:EsqlColumns / instance_of - No type definition for '_builtins:binary'"
       ]
diff --git a/output/typescript/types.ts b/output/typescript/types.ts
index 33a4181a7d..db98c6d11a 100644
--- a/output/typescript/types.ts
+++ b/output/typescript/types.ts
@@ -9886,11 +9886,13 @@ export type EqlSearchResultPosition = 'tail' | 'head'
 export interface EsqlQueryRequest extends RequestBase {
   format?: string
   delimiter?: string
+  drop_null_columns?: boolean
   body?: {
     columnar?: boolean
     filter?: QueryDslQueryContainer
     locale?: string
-    params?: ScalarValue[]
+    params?: FieldValue[]
+    profile?: boolean
     query: string
   }
 }
diff --git a/specification/_doc_ids/table.csv b/specification/_doc_ids/table.csv
index def9c4b73f..63879dec52 100644
--- a/specification/_doc_ids/table.csv
+++ b/specification/_doc_ids/table.csv
@@ -148,6 +148,7 @@ eql-syntax,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/eql-
 eql,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/eql.html
 esql-query,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/esql-rest.html
 esql-query-params,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/esql-rest.html#esql-rest-params
+esql-returning-localized-results,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/esql-rest.html#esql-locale-param
 evaluate-dfanalytics,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/evaluate-dfanalytics.html
 execute-enrich-policy-api,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/execute-enrich-policy-api.html
 expected-reciprocal,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/search-rank-eval.html#_expected_reciprocal_rank_err
diff --git a/specification/esql/query/QueryRequest.ts b/specification/esql/query/QueryRequest.ts
index fe4e8d2308..a9eae673b6 100644
--- a/specification/esql/query/QueryRequest.ts
+++ b/specification/esql/query/QueryRequest.ts
@@ -19,7 +19,7 @@
 
 import { RequestBase } from '@_types/Base'
 import { QueryContainer } from '@_types/query_dsl/abstractions'
-import { ScalarValue } from '@_types/common'
+import { FieldValue } from '@_types/common'
 
 /**
  * Executes an ES|QL request
@@ -38,6 +38,12 @@ export interface Request extends RequestBase {
      * The character to use between values within a CSV row. Only valid for the CSV format.
      */
     delimiter?: string
+    /**
+     * Should columns that are entirely `null` be removed from the `columns` and `values` portion of the results?
+     * Defaults to `false`. If `true` then the response will include an extra section under the name `all_columns` which has the name of all columns.
+     * @server_default false
+     */
+    drop_null_columns?: boolean
   }
   /**
    * Use the `query` element to start a query. Use `time_zone` to specify an execution time zone and `columnar` to format the answer.
@@ -51,12 +57,17 @@ export interface Request extends RequestBase {
      * Specify a Query DSL query in the filter parameter to filter the set of documents that an ES|QL query runs on.
      */
     filter?: QueryContainer
+    /*
+     * Returns results (especially dates) formatted per the conventions of the locale.
+     * @doc_id esql-returning-localized-results
+     */
     locale?: string
     /**
      * To avoid any attempts of hacking or code injection, extract the values in a separate list of parameters. Use question mark placeholders (?) in the query string for each of the parameters.
      * @doc_id esql-query-params
      */
-    params?: Array<ScalarValue>
+    params?: Array<FieldValue>
+    profile?: boolean
     /**
      * The ES|QL query API accepts an ES|QL query string in the query parameter, runs it, and returns the results.
      */