Apploed patch by MauMau <maumau307@gmail.com> to escape filenames in #line statements.
Expose the estimation of number of changed tuples since last analyze

This value, now pg_stat_all_tables.n_mod_since_analyze, was already
tracked and used by autovacuum, but not exposed to the user.

Mark Kirkwood, review by Laurenz Albe
Fix spelling error

Reported by Kevin Hale Boyes
Remove stray | character

Erikjan Rijkers