midHash Tables
Clustering in Open Addressing
Updated Apr 28, 2026
Short answer
Primary clustering happens with linear probing (clumps); Secondary happens when keys with same hash follow same probe path.
Deep explanation
Intermediate hash table mechanics focus on optimization and collision management. Primary clustering happens with linear probing (clumps); Secondary happens when keys with same hash follow same probe path.
Real-world example
Database indexing for unique identifiers.
Common mistakes
- Forgetting that resizing requires re-calculating the hash for every existing item.
Follow-up questions
- Why is table size usually a prime number?