Re: [COMMITTERS] pgsql: Use a bitmask to represent role attributes

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От Tom Lane
Тема Re: [COMMITTERS] pgsql: Use a bitmask to represent role attributes
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Msg-id 379.1419352449@sss.pgh.pa.us
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Ответ на Re: [COMMITTERS] pgsql: Use a bitmask to represent role attributes  (Stephen Frost <sfrost@snowman.net>)
Ответы Re: [COMMITTERS] pgsql: Use a bitmask to represent role attributes  (Bruce Momjian <bruce@momjian.us>)
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Stephen Frost <sfrost@snowman.net> writes:
> If that's the only consideration for this, well, that's certainly quite
> straight-forward to change in the other direction too.  The new function
> suggested by Andres actually makes it really easy to get a textual list
> of all the role attributes which a role has from the bitmask too.

We could have that regardless of the representation, if the function is
defined along the lines of "given a user OID, give me a text string
representing the user's attributes".  However, that only helps for
pg_dumpall and any other clients whose requirement is exactly satisfied
by a string that fits into CREATE/ALTER USER.  The current formatting
of psql's \du, for example, absolutely requires adding more client-side
code every time we add a property; whether the catalog representation is
bools or a bitmask really isn't going to change the pain level much there.
        regards, tom lane



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