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Message Posted: Fri, 27 Jul 2012 @ 07:24:56 GMT

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Subj:   PE plan for join
From:   sughesh iyyani

Hi Experts,

Kindly let me know the explanation for below scenario.

Suppose there are 2 tables, table a with 10 million records, table b has 100 million records, now we are joining both tables, when we see explain plan of PE the plan showing TD will took smaller table a and it will redistributes it among all AMPs to do join.

My question is: by doing this plan is the optimizer is correct job or not ?

So much spool space required for this operation.

If I have UPI and some SI on this table, will PE select above plan?

Kindly let me know.

Thanks in advance,

Sughesh I S.

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