Extend monotonicity analysis #5085
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The PR extends monotonicity analysis within views to all methods other than
Negate(nope) andLet(too annoying at the moment). This includesFlatMap(when not theRepeatTVF),Join(when all inputs are monotonic) andReduce(when there are no aggregates). Some other cases likeConstantandThresholdfilled in as well.This is a render-time change, so we'll need to rely on tests and inspection to see if we've botched anything.
Related to issue MaterializeInc/database-issues#1559
This change is