> Thanks for checking. Fixed to eliminate SnapshotNow.
Looking forward to get a new patch, incorporating the comments, that are already given in the following mails:
1. Jaime Casanova: "The name pgstattuple2, doesn't convince me... maybe you can use pgstattuple() if you use a second argument (percentage of the sample) to overload the function".
The comment related to having an argument, to mention the sampling number, is also given by Greg Smith: “There should be an input parameter to the function for how much sampling to do”
2. Yourself: "I think it could be improved by sorting sample block numbers before physical block reads in order to eliminate random access on the disk."
