Maybe it would be interesting to see in detail those cases that got a
bit slower, to further tweak the heuristic if necessary.  Is the extra
time, time spent in planning or in execution?

Since there doesn't seem to be vast interest out there in testing this
further, I'm going to go ahead and apply the patch to get it out of my
working directory.  We can always tweak it more later if new info

Doing my routine patching seems to have exploded my mail server, sorry for not replying sooner!

I don't actually have planning vs. execution time statistics from the older version for the queries in question -- there were not 'problem queries' and therefore were never really analyzed. My customer's already dragging me off to another issue, so I've got to shift gears.

Appreciate all your work -- thanks again!!! :)


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