SDK crashes when migrating Primary Key from String to UUID #8045
Description
SDK and version
SDK : Swift
Version: 10.33.0
Observations
- How frequent do the crash occur? Everytime
- Does it happen in production or during dev/test? Dev
- Can the crash be reproduced by you? Yes
- Can you provide instructions for how we can reproduce it? Change my primary key type from String to UUID. The migrationBlock is never called and the SDK crashes.
Crash log / stacktrace
realm-core/src/realm/object-store/shared_realm.cpp:474: [realm-core-12.13.0] Assertion failed: additive || (required_changes = ObjectStore::schema_from_group(read_group()).compare(schema)).empty()
0 RealmPackage 0x000000010b074390 _ZN5realm4utilL18terminate_internalERNSt3__118basic_stringstreamIcNS1_11char_traitsIcEENS1_9allocatorIcEEEE + 28
1 RealmPackage 0x000000010b074370 _ZN5realm4util9terminateEPKcS2_lOSt16initializer_listINS0_9PrintableEE + 204
2 RealmPackage 0x000000010abf7184 _ZN5realm5Realm13update_schemaENS_6SchemaEyNSt3__18functionIFvNS2_10shared_ptrIS0_EES5_RS1_EEENS3_IFvS5_EEEb + 1680
3 RealmPackage 0x000000010a637b18 +[RLMRealm realmWithConfiguration:queue:error:] + 2528
4 RealmPackage 0x000000010a6db4f4 $sSo8RLMRealmC13configuration5queueABSo0A13ConfigurationC_So012OS_dispatch_C0CSgtKcfCTO + 144
5 RealmPackage 0x000000010a791a30 $s10RealmSwift0A0V13configuration5queueA2C13ConfigurationV_So012OS_dispatch_D0CSgtKcfC + 112
6 XXXXXXX 0x0000000102f468e4 $XXXXXXXXX + 156
7 XXXXXXX 0x0000000102f469e0 $sIegh_IeyBh_TR + 48
8 libdispatch.dylib 0x0000000103d64ec0 _dispatch_call_block_and_release + 24
9 libdispatch.dylib 0x0000000103d667b8 _dispatch_client_callout + 16
10 libdispatch.dylib 0x0000000103d6eaac _dispatch_lane_serial_drain + 912
11 libdispatch.dylib 0x0000000103d6f7b0 _dispatch_lane_invoke + 420
12 libdispatch.dylib 0x0000000103d7c1f0 _dispatch_root_queue_drain_deferred_wlh + 324
13 libdispatch.dylib 0x0000000103d7b75c _dispatch_workloop_worker_thread + 732
14 libsystem_pthread.dylib 0x00000001038df814 _pthread_wqthread + 284
15 libsystem_pthread.dylib 0x00000001038de5d4 start_wqthread
Steps & Code to Reproduce
I changed my primary key type from String to UUID
OLD:
public class MyClass: Object {
@Persisted(primaryKey: true) public var id: String?
NEW:
public class MyClass: Object {
@Persisted(primaryKey: true) public var id: UUID?
configuration:
schemaVersion: 3,
migrationBlock: { migration, oldSchemaVersion in
/// THIS IS NEVER CALLED
if oldSchemaVersion == 1 {
} else if oldSchemaVersion == 2 {
migration.enumerateObjects(ofType: MyClass.className()) { oldObject, newObject in
newObject!["id"] = UUID(uuidString: oldObject!["id"]! as! String)
}
}
}