Binary Search in Data Engineering

Concepts: pyBinarySearchDE, pyPartitionKey, pyTimestampSearch

Every data engineer works with sorted data constantly. Sorted timestamps in event logs. Sorted partition keys in Hive and Spark. Sorted config files. Sorted indices in databases. Binary search is not a toy algorithm you use in interviews and then forget. It is the lookup primitive that underpins every index, every partition skip, every range query in production. When you finish solving a binary search problem in an interview, connecting it to these real applications is what takes your answer from 'correct' to 'exceptional.' Binary Search on Sorted Timestamps The most direct DE application: given a sorted log of event timestamps, find all events within a time range. O(log n) to locate the boundaries with bisect_left and bisect_right, then O(k) to return the k matching events. Compare this t