From 3c19ef0a9b202440e6e5e815fa75bcd4691635aa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Josef=20V=C3=A1lek?= <valek.josef@seznam.cz>
Date: Thu, 30 Oct 2025 16:46:16 +0100
Subject: [PATCH] fix: How to make fields nullable in dataset schema

---
 .../actor_definition/dataset_schema/validation.md  | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/sources/platform/actors/development/actor_definition/dataset_schema/validation.md b/sources/platform/actors/development/actor_definition/dataset_schema/validation.md
index 745c48db6..a4d10edb0 100644
--- a/sources/platform/actors/development/actor_definition/dataset_schema/validation.md
+++ b/sources/platform/actors/development/actor_definition/dataset_schema/validation.md
@@ -185,12 +185,22 @@ Enabling fields to be `null` :
 ```json
 {
     "name": {
-        "type": "string",
-        "nullable": true
+        "type": ["string", "null"]
     }
 }
 ```
 
+In case of enums `null` needs to be within the set of allowed values:
+
+```json
+{
+    "type": {
+        "enum": ["list", "detail", null]
+    }
+}
+```
+
+
 Define type of objects in array:
 
 ```json