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Re: \d on database with a lot of tables is slow - Mailing list pgsql-hackers

From Tom Lane
Subject Re: \d on database with a lot of tables is slow
Date
Msg-id 1744.1127761244@sss.pgh.pa.us
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In response to Re: \d on database with a lot of tables is slow  ("Jim C. Nasby" <jnasby@pervasive.com>)
Responses Re: \d on database with a lot of tables is slow
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"Jim C. Nasby" <jnasby@pervasive.com> writes:
>>> I have a client with a database that contains 4000 relations according
>>> to vacuum verbose, and \d in psql is painfully slow. In particular...

It's presumably mostly in the pg_table_is_visible() calls.  Not sure if
we can do much to speed those up, but: how many schemas in your search
path?  What's the distribution of pg_class entries among the schemas?
        regards, tom lane

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