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I think it's because the docs say "If there isn't enough memory, you can't run a JOIN." . While SQL on Hadoop solutions work also without enough RAM by spilling
by Lethalman 10y ago
I think it's because the docs say "If there isn't enough memory, you can't run a JOIN." . While SQL on Hadoop solutions work also without enough RAM by spilling on disk. I don't think a comparison with JOINs would be fair in this case.