Add indexes on foreign keys in Reminders and SyncUp examples (pointfreeco#317)

* Add indexes on foreign keys in Reminders and SyncUp examples

* idx_remindersListAssets_remindersListID is not necessary because remindersListID is the primary key and so already indexed.

* F**. fix last fix

Author: jcmourey

Examples/Reminders/Schema.swift

@@ -229,6 +229,30 @@ func appDatabase() throws -> any DatabaseWriter {
     .execute(db)
   }
 
+  migrator.registerMigration("Create foreign key indexes") { db in
+    try #sql(
+      """
+      CREATE INDEX IF NOT EXISTS "idx_reminders_remindersListID"
+      ON "reminders"("remindersListID")
+      """
+    )
+    .execute(db)
+    try #sql(
+      """
+      CREATE INDEX IF NOT EXISTS "idx_remindersTags_reminderID"
+      ON "remindersTags"("reminderID")
+      """
+    )
+    .execute(db)
+    try #sql(
+      """
+      CREATE INDEX IF NOT EXISTS "idx_remindersTags_tagID"
+      ON "remindersTags"("tagID")
+      """
+    )
+    .execute(db)
+  }
+  
   try migrator.migrate(database)
 
   try database.write { db in
@@ -515,3 +539,4 @@ nonisolated private let logger = Logger(subsystem: "Reminders", category: "Datab
     }
   }
 #endif
+

Examples/SyncUps/Schema.swift

@@ -123,6 +123,22 @@ extension DependencyValues {
       )
       .execute(db)
     }
+    migrator.registerMigration("Create foreign key indexes") { db in
+      try #sql(
+        """
+        CREATE INDEX IF NOT EXISTS "idx_attendees_syncUpID"
+        ON "attendees"("syncUpID")
+        """
+      )
+      .execute(db)
+      try #sql(
+        """
+        CREATE INDEX IF NOT EXISTS "idx_meetings_syncUpID"
+        ON "meetings"("syncUpID")
+        """
+      )
+      .execute(db)
+    }
     try migrator.migrate(database)
     defaultDatabase = database
     defaultSyncEngine = try SyncEngine(