Simon Riggs <simon@2ndquadrant.com> writes:
> Currently, CTAS optimization requires a heap_sync during ExecEndPlan. It
> would be easy enough to extend this so that it also works for INSERT,
> UPDATE and DELETE.
If you tried to do it that way you'd break the system completely. Not
all updates go through the executor.
I think it's a bad idea anyway; you'd be adding overhead to the lowest
level routines in order to support a feature that would be very seldom
used, at least in comparison to the number of times those routines are
executed.
regards, tom lane
