init commit

store/migration/sqlite/0.24/01__memo_pinned.sql

@@ -0,0 +1,11 @@
+-- Add pinned column.
+ALTER TABLE memo ADD COLUMN pinned INTEGER NOT NULL CHECK (pinned IN (0, 1)) DEFAULT 0;
+
+-- Update pinned column from memo_organizer.
+UPDATE memo
+SET pinned = 1
+WHERE EXISTS (
+    SELECT 1
+    FROM memo_organizer
+    WHERE memo.id = memo_organizer.memo_id AND memo_organizer.pinned = 1
+);