Wes <[EMAIL PROTECTED]> writes:
> A while back, I saw a posting (I think from Tom) to the effect of index
> creation converging due to disk caching. It was along the lines of the
> slower index would be reading from disk data cached by the first index
> creation's read. When the faster creation went out to read from disk, the
> one reading from memory could catch up. Possible?
There would be some convergence effect while reading the table contents,
but the subsequent sorting and index-writing would be competitive and
ought to diverge again.
regards, tom lane
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TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
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