Hi all, I'm trying to create some kind of table version control system for approximately 300 postgres databases ranging in version from 7.1.2 to 7.3.4.
I compared the "pg_dump -s" output between the various versions of databases, but the format is inconsistent, and I can't do diff's to check that table structures are identical on the various databases this way. What I did next, is put a trigger on pg_attribute that should, in theory, on insert and update, fire up a function that will increment a version number on a table comment every time a table's structure is modified. I tried to make the function update a comment on pg_description to accomplish this. I'm having a lot of trouble doing this and testing it, and after plenty tries it's still not working. I've attached the trigger statement and the plpgsql function. (There might be a few mistakes, and I haven't attempted to cater for system columns and multiple changes yet.) Can somebody please tell me if what I'm trying will ever work, or maybe an alternative (easier) way to compare a specific table's structure amongst various databases, that are not necessarily on the same network, nor of the same version of postgres. Regards Stefan
test.plpgsql
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test.trigger
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pgp00000.pgp
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