Hash keys probe and residual – dba.stackexchange.com

Hash keys probe and residual – dba.stackexchange.com

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Say, we have a query like this: select a.*,b.* from a join b on a.col1=b.col1 and len(a.col1)=10 Assuming the above query uses a Hash Join and has a residual, the probe key will be col1 and the ...

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