It makes sense to do the CCIs in the places that do catalog updates,
rather than before the places that error out because the former ones
fail to do it.  In particular, it looks like StorePartitionBound() and
IndexSetParentIndex() ought to make their own CCIs.

Per review comments from Peter Eisentraut for row-level triggers on
partitioned tables.

Discussion: https://postgr.es/m/20171229225319.ajltgss2ojkfd3kp@alvherre.pgsql