fix deleting local libraries with mysql (#1919)

CHANGELOG.md

@@ -11,6 +11,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Fix destroying channel preview player when preview dialog is closed
   - This bug made it difficult to "stop" a channel after previewing it
 - Fix bug where deco default filler would never use hardware acceleration
+- Fix deleting local libraries with MySql backend
 
 ## [0.8.8-beta] - 2024-09-19
 ### Added

ErsatzTV.Application/Libraries/Commands/DeleteLocalLibraryHandler.cs

@@ -46,10 +46,13 @@ public class DeleteLocalLibraryHandler : LocalLibraryHandlerBase,
         await dbContext.Connection.ExecuteAsync(
             """
             DELETE FROM MediaItem WHERE Id IN
+            (
+                SELECT Id FROM
                 (
                     SELECT MI.Id FROM MediaItem MI
                     INNER JOIN LibraryPath LP ON MI.LibraryPathId = LP.Id
                     WHERE LP.LibraryId = @LibraryId
+                ) AS MI
             )
             """,
             new { LibraryId = localLibrary.Id });