Current content of control file is insufficient to check if database is
compatible with postgres server. I think we should create footprint file which
will contains all page data structures and their member offset and length (and
As a first step which is useful at least for in-place-upgrade is footprint
switch which prints page layout structures. I attach WIP patch.
I'm thinking also to create pg_footprint view with (version, structure name,
attribute, offset, size) columns. But I'm not sure about usefulness of this
catalog (?maybe for regression tests?).
Zdenek Kotala Sun Microsystems
Prague, Czech Republic http://sun.com/postgresql
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