@Override
	int write(Buffer buf, int offset) throws IndexOutOfBoundsException, IOException {
		offset = indexedField.write(buf, offset);
		return primaryKey.write(buf, offset);
	}
Determine if the index field value has been truncated from its' original
value.
@return true if truncated else false
@deprecated this method serves no real purpose since the truncation 
status is not retained within the index table.
Ghidra/Framework/DB/src/main/java/db/IndexField.java