fix: make schema.sql fully idempotent — add IF NOT EXISTS to all CREATE INDEX, CREATE TRIGGER, and CREATE VIEW statements

scripts/generate-schema.py

@@ -131,6 +131,11 @@ for (sql,) in indexes:
     clean = sql.strip()
     if not clean.endswith(';'):
         clean += ';'
+    # Make idempotent — SQLite doesn't store IF NOT EXISTS in sqlite_master.sql
+    if clean.upper().startswith('CREATE INDEX ') and 'IF NOT EXISTS' not in clean.upper():
+        clean = clean.replace('CREATE INDEX ', 'CREATE INDEX IF NOT EXISTS ', 1)
+    if clean.upper().startswith('CREATE UNIQUE INDEX ') and 'IF NOT EXISTS' not in clean.upper():
+        clean = clean.replace('CREATE UNIQUE INDEX ', 'CREATE UNIQUE INDEX IF NOT EXISTS ', 1)
     print(clean)
     print()
 
@@ -143,6 +148,9 @@ for (sql,) in views:
     clean = sql.strip()
     if not clean.endswith(';'):
         clean += ';'
+    # Make idempotent — SQLite doesn't store IF NOT EXISTS in sqlite_master.sql
+    if clean.upper().startswith('CREATE VIEW ') and 'IF NOT EXISTS' not in clean.upper():
+        clean = clean.replace('CREATE VIEW ', 'CREATE VIEW IF NOT EXISTS ', 1)
     print(clean)
     print()
 
@@ -155,6 +163,9 @@ for (sql,) in triggers:
     clean = sql.strip()
     if not clean.endswith(';'):
         clean += ';'
+    # Make idempotent — SQLite doesn't store IF NOT EXISTS in sqlite_master.sql
+    if clean.upper().startswith('CREATE TRIGGER ') and 'IF NOT EXISTS' not in clean.upper():
+        clean = clean.replace('CREATE TRIGGER ', 'CREATE TRIGGER IF NOT EXISTS ', 1)
     print(clean)
     print()