The Runtime storage in Substrate is based on a tree structure rather than a flat structure. While this allows for efficient integrity verification, it incurs data retrieval overhead. According to the documentation:
Accessing trie data is costly. Each read operation takes O(log N) time, where N is the number of elements stored in the trie. To mitigate this, we use a key-value cache.
To optimize data retrieval, I'm interested in exploring alternative storage approaches. Specifically:
- Is it possible to use a flat structure storage in the Runtime? If so, what are the necessary steps to implement it?
- Are there any other recommended approaches or strategies to improve data retrieval performance in Substrate?
I appreciate any insights, recommendations, or references regarding alternative storage options and techniques to improve data retrieval efficiency in Substrate's Runtime storage.