I wrote: > We don't know the column mapping there, either. What we need to have > our hands on is the "attmap" computed in expandTableLikeClause, and > then we can pass the stats expressions through map_variable_attnos().
> I think this might not need to be a really large patch, but it > definitely has to change where generateClonedExtStatsStmt is > called from. I can have a go at it if Tomas doesn't want to.
Yeah, this doesn't require a whole lot more than moving the processing in transformTableLikeClause to expandTableLikeClause.
I chose to get rid of transformExtendedStatistics, because not only is there nothing for it to do, there will never be any statements for it to do nothing to.