Re: [GENERAL] Concurrency problem building indexes

[Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>]

Wes <wespvp(at)syntegra(dot)com> 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