Re: Potential bug in pg_dump ...

At 08:25 18/12/01 +1100, Philip Warner wrote:
>At 14:10 17/12/01 -0500, Marc G. Fournier wrote:
>>
>>Got a report the other day of a "problem" with pg_dump where, if in the
>>middle of a dump, someone happens to drop a table, it errors out with:
>>
>
>pg_dump runs in a single TX, which should mean that metadata changes in
>another process won't affect it. Have I misunderstood the way PG handles
>metadata changes?
>

Maybe I'm expectibg too much from the locking, since pg_dump is only
reading pg_class to get a list of tables. Perhaps it should do one of the
following:

a) Issue a LOCK TABLE for each table (seems like a bad idea)

b) Reconfirm the existance of the table before trying to dump it.

c) Ignore the problem

I favour either (b) or (c). Anyone have comments or other suggestions?


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