Support now null as not initialized for SteamId

src/main/java/auth_service/modules/registration/persistence/entities/RegisteredUserEntity.java

@@ -12,6 +12,7 @@ import java.time.LocalDateTime;
 @NoArgsConstructor
 @AllArgsConstructor
 @Builder
+@Inheritance(strategy = InheritanceType.SINGLE_TABLE)
 public class RegisteredUserEntity {
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
@@ -26,7 +27,7 @@ public class RegisteredUserEntity {
     @Column(nullable = false)
     private boolean enabled;
 
-    @Column(name = "steam_id", unique = true, nullable = false)
+    @Column(name = "steam_id", unique = true)
     private Long steamId;
 
     @Column(name = "registration_date", nullable = false)

src/main/resources/db/migration/V4__Add_Valid_SteamId.sql

@@ -1,9 +0,0 @@
-UPDATE users
-SET steam_id = 0
-WHERE steam_id IS NULL;
-
-ALTER TABLE users
-    ALTER COLUMN steam_id SET DEFAULT 0;
-
-ALTER TABLE users
-    ALTER COLUMN steam_id SET NOT NULL;