Here's the patch as-applied. Note one major difference from your original: the logic about whether an indexscan can be skipped is now entirely local to the index AMs, rather than allowing VACUUM to make assumptions that may not be warranted for particular AMs. For the same reason, the AM is still responsible for providing the tuple count statistic.
regards, tom lane
binGCkhzbMrzu.bin
Description: bulkdelete.patch.gz
---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings
