fix: use create if not exists clause for indexes (#20728)

Co-authored-by: shenlong-tanwen <139912620+shalong-tanwen@users.noreply.github.com>

mobile/lib/infrastructure/entities/exif.entity.dart

@@ -95,7 +95,7 @@ class ExifInfo {
   );
 }
 
-@TableIndex(name: 'idx_lat_lng', columns: {#latitude, #longitude})
+@TableIndex.sql('CREATE INDEX IF NOT EXISTS idx_lat_lng ON remote_exif_entity (latitude, longitude)')
 class RemoteExifEntity extends Table with DriftDefaultsMixin {
   const RemoteExifEntity();
 

mobile/lib/infrastructure/entities/local_asset.entity.dart

@@ -4,7 +4,7 @@ import 'package:immich_mobile/infrastructure/entities/local_asset.entity.drift.d
 import 'package:immich_mobile/infrastructure/utils/asset.mixin.dart';
 import 'package:immich_mobile/infrastructure/utils/drift_default.mixin.dart';
 
-@TableIndex(name: 'idx_local_asset_checksum', columns: {#checksum})
+@TableIndex.sql('CREATE INDEX IF NOT EXISTS idx_local_asset_checksum ON local_asset_entity (checksum)')
 class LocalAssetEntity extends Table with DriftDefaultsMixin, AssetEntityMixin {
   const LocalAssetEntity();
 

mobile/lib/infrastructure/entities/remote_asset.entity.dart

@@ -5,7 +5,9 @@ import 'package:immich_mobile/infrastructure/entities/user.entity.dart';
 import 'package:immich_mobile/infrastructure/utils/asset.mixin.dart';
 import 'package:immich_mobile/infrastructure/utils/drift_default.mixin.dart';
 
-@TableIndex(name: 'idx_remote_asset_owner_checksum', columns: {#ownerId, #checksum})
+@TableIndex.sql(
+  'CREATE INDEX IF NOT EXISTS idx_remote_asset_owner_checksum ON remote_asset_entity (owner_id, checksum)',
+)
 @TableIndex.sql('''
 CREATE UNIQUE INDEX IF NOT EXISTS UQ_remote_assets_owner_checksum
 ON remote_asset_entity (owner_id, checksum)
@@ -16,7 +18,7 @@ CREATE UNIQUE INDEX IF NOT EXISTS UQ_remote_assets_owner_library_checksum
 ON remote_asset_entity (owner_id, library_id, checksum)
 WHERE (library_id IS NOT NULL);
 ''')
-@TableIndex(name: 'idx_remote_asset_checksum', columns: {#checksum})
+@TableIndex.sql('CREATE INDEX IF NOT EXISTS idx_remote_asset_checksum ON remote_asset_entity (checksum)')
 class RemoteAssetEntity extends Table with DriftDefaultsMixin, AssetEntityMixin {
   const RemoteAssetEntity();
 

mobile/lib/infrastructure/repositories/db.repository.dart

@@ -106,10 +106,13 @@ class Drift extends $Drift implements IDatabaseRepository {
           from5To6: (m, v6) async {
             // Drops the (checksum, ownerId) and adds it back as (ownerId, checksum)
             await customStatement('DROP INDEX IF EXISTS UQ_remote_asset_owner_checksum');
+            await m.drop(v6.idxRemoteAssetOwnerChecksum);
             await m.create(v6.idxRemoteAssetOwnerChecksum);
             // Adds libraryId to remote_asset_entity
             await m.addColumn(v6.remoteAssetEntity, v6.remoteAssetEntity.libraryId);
+            await m.drop(v6.uQRemoteAssetsOwnerChecksum);
             await m.create(v6.uQRemoteAssetsOwnerChecksum);
+            await m.drop(v6.uQRemoteAssetsOwnerLibraryChecksum);
             await m.create(v6.uQRemoteAssetsOwnerLibraryChecksum);
           },
           from6To7: (m, v7) async {