public void close() {
		insertStatement.close();
		selectStatement.close();
		updateStatement.close();
		deleteStatement.close();
		reusableStatement.close();
		db = null;				// We do not own the db
	}
Free any resources and relinquish references to the connection
Ghidra/Features/BSim/src/main/java/ghidra/features/bsim/query/client/tables/OptionalTable.java