bring back unordered cracking and validation tests for it adapted the unordered cracking routines so that they can be plugged into the crackers select function
bring back unordered cracking and validation tests for it
adapted the unordered cracking routines so that they can be plugged into the crackers select function

first tests show some significant improvements, e.g., on a 10M bat
Total time for select after 50 calls is already 6 times faster than algebra select

The point where crack and sort get even is after around 15000 calls instead of 350 we had before. At 15000 we are already beyond the point where we should have stopped updating the index.

joins do not get more expensive

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