Re: Find dangling membership roles in pg_dumpall - Mailing list pgsql-hackers

From Daniel Gustafsson
Subject Re: Find dangling membership roles in pg_dumpall
Date
Msg-id ED3207DF-9561-4854-ABC1-057BF6BD247C@yesql.se
Whole thread Raw
In response to Find dangling membership roles in pg_dumpall  (Andreas 'ads' Scherbaum <ads@pgug.de>)
Responses Re: Find dangling membership roles in pg_dumpall
List pgsql-hackers
> On 26 Apr 2023, at 12:18, Andreas 'ads' Scherbaum <ads@pgug.de> wrote:
> 
> 
> Hello,
> 
> pg_dumpall.c has a function dumpRoleMembership() which dumps all
> membership roles. This function includes a piece of code which checks
> if the membership tree has an open end which can't be resolved.
> However that code is never used.
> 
> The variable prev_remaining is initially set to 0, and then never changed.
> Which in turn never executes this code:
> 
> if (remaining == prev_remaining)
> 
> because the loop is only entered while "remaining > 0".
> 
> The attached patch fixes this problem, and updates prev_remaining inside
> the loop.

Nice catch, that indeed seems like a proper fix.  This was introduced in
ce6b672e44 and so doesn't need a backpatch.

--
Daniel Gustafsson




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