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dbgroup-at-ucsc / dbtune

This research project aims to develop tools in order to make index tuning easier and more effective.
http://users.soe.ucsc.edu/~alkis/tuning/
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Implement SecondChanceStrategy #255

Open ivotron opened 12 years ago

ivotron commented 12 years ago

Implement a SecondChanceStrategy that would detect when a configuration is being matched against the FTS-everywhere template plan (which indicates that the corresponding interesting order may not have been considered at space-computation time) and create a template for it. This may not be relevant for BIP-based techniques (since this works on a per-what-if call basis instead of a per-slot one).

npolyzotis commented 12 years ago

Is it clear that this case means that the interesting order has not been considered before? Can't it be that the indexes are simply not useful?