How does the data store behave when encountering a key collision?
sobes.tech AI
Answer from AI
When key collisions occur in data storage (for example, in hash tables), the system should handle the situation correctly to maintain data integrity. Common approaches include:
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Chaining: all elements with the same hash code are stored in a linked list or another data structure within the same bucket.
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Open addressing: when a collision occurs, the system searches for the next free bucket according to a certain algorithm (linear probing, quadratic probing, double hashing).
In iOS, for example, when using dictionaries (NSDictionary/NSMutableDictionary), collisions are handled by internal mechanisms that ensure correct storage and retrieval of values by keys.
Thus, data is not lost during collisions but is stored and accessible correctly.