tvondra/pg_check — pull request #2 by zwily (2012-07-05 21:22:39+00:00)
Title: Fix skipping index tuples with no data.

The previous code was only skipping a tuple with no data if the page was
leftmost. That was too restrictive. Any non-leaf page might have an empty
tuple in the first data key location (1 or 2, depending on whether the page is
rightmost), so that check is expanded a bit.