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I am storing certain entities in my database with integer Ids of size 32 bits thus using the range of -2.14 billion to +2.14 billion.
I have given tried giving some meaning to my ids due to which my Ids, in the positive range, have finished up a bit quickly. I am looking forward to use the negative integer range of -2.14 billion to 0.
Wanted to know, if you could see any downsides of using negative integers as ids, though personally I don’t see any downsides.
Given than dumb keys are only compared for equality, sign or lack thereof has no impact.