@Override
	AddressKeyIterator getKeys(Address start, Address end, boolean atStart) throws IOException {
		if (atStart) {
			return new AddressKeyIterator(dataTable, addrMap, start, end, start, true);
		}
		return new AddressKeyIterator(dataTable, addrMap, start, end, end, false);
	}
@see ghidra.program.database.code.DataDBAdapter#getKeys(long, long)
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/code/DataDBAdapterV0.java