how an app can know when a table is altered ? - Mailing list pgsql-hackers

From valter m
Subject how an app can know when a table is altered ?
Date
Msg-id 20000613003206.37735.qmail@hotmail.com
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List pgsql-hackers
i'm developing a framework (mod_perl+apache) that reads the db-schema and 
automatically explode html forms.

now i read the schema and cache it into perl-hashes to speedup things.

my problem is to recognize when a table is altered so that the framework can 
update the related forms connected to the db tables.
i don't want to read the schema every time (now i must restart apache, and i 
don't want to restart ...)

It's possible? How can i implement this ?

Thank you,

valter
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