extend checkpoint_ns to 255

Author: a180285

langgraph/checkpoint/mysql/__init__.py

@@ -119,6 +119,7 @@ def setup(self) -> None:
             ):
                 cur.execute(migration)
                 cur.execute(f"INSERT INTO checkpoint_migrations (v) VALUES ({v})")
+                cur.execute("COMMIT")
 
     def list(
         self,

langgraph/checkpoint/mysql/base.py

@@ -70,9 +70,9 @@
     CREATE INDEX checkpoints_checkpoint_id_idx ON checkpoints (checkpoint_id);
     """,
     """
-    ALTER TABLE checkpoints MODIFY COLUMN `checkpoint_ns` LONGTEXT NOT NULL DEFAULT '';
-    ALTER TABLE checkpoint_blobs MODIFY COLUMN `checkpoint_ns` LONGTEXT NOT NULL DEFAULT '';
-    ALTER TABLE checkpoint_writes MODIFY COLUMN `checkpoint_ns` LONGTEXT NOT NULL DEFAULT '';
+    ALTER TABLE checkpoints MODIFY COLUMN `checkpoint_ns` VARCHAR(255) NOT NULL DEFAULT '';
+    ALTER TABLE checkpoint_blobs MODIFY COLUMN `checkpoint_ns` VARCHAR(255) NOT NULL DEFAULT '';
+    ALTER TABLE checkpoint_writes MODIFY COLUMN `checkpoint_ns` VARCHAR(255) NOT NULL DEFAULT '';
     """,
 ]