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45bd332460
* allow separate table key / hash key, and use std::string / StringRef for generic variant as it has built-in storage and StringRef is supported by the hash table, this avoids infinitely growing arena with serialised keys * use power-of-2 size for alpha vector for faster binning without using modulo * use custom grower and allocator for SpaceSaving to start with smaller tables * store computed hash in counter for faster reinsertion of smallest element |
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