
Designing Data-Intensive Applications – Secondary Indexes, Rebalancing, Routing
Coding Blocks
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Queer Optimizers - No Sequel?
query optemisers are like a super big brain with a whole bunch of idono spider legs, or something. The queery optimiser is responsible for figuring out how to get your data back in the most efficient way. So you don't have to think about it as human or a qreative helper. Therewas a couple of tricks from eran, sometimes tha sequal serve had a problem whith it wath either with and statements or or statements. It was more efficient sometimes, to do a union of two queries than it was to do likan or statement,. which seems tolally crazy, but is.
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