Parent-Child Relationships and the Questions Left Unanswered by TKPROF, Re-Learning Something Old

(Charles Hooper) As we have seen in the past, TKPROF output sometimes lies, and in a recent OTN thread I was reminded of another case or two where TKPROF output may be misleading. In the OTN thread, the original poster (OP) started the thread by asking a simple question about an execution plan that

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