@Override
	public int getKeyIndex(Field key) throws IOException {
		return getKeyIndex(key.getLongValue());
	}
Perform a binary search to locate the specified key.
@param key key value
@return int key index if found, else -(key index + 1) indicates insertion
point.
Ghidra/Framework/DB/src/main/java/db/LongKeyRecordNode.java