"Qingqing Zhou" <zhouqq@cs.toronto.edu> writes:
> "Tom Lane" <tgl@sss.pgh.pa.us> wrote
>> No, I mean I ran the bit of SQL script I gave 100 separate times.
> I must misunderstand something here -- I can't figure out that why the cost
> of the same procedure keep climbing?
No, the run cost varies randomly depending on the random data supplied
by the test script. The reason the numbers are increasing is that I
sorted them for ease of inspection.
regards, tom lane
