From: | Stephen Frost <sfrost(at)snowman(dot)net> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr>, Andres Freund <andres(at)anarazel(dot)de>, Robert Haas <robertmhaas(at)gmail(dot)com>, Thom Brown <thom(at)linux(dot)com>, Abhijit Menon-Sen <ams(at)2ndquadrant(dot)com>, Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, Haribabu Kommi <kommi(dot)haribabu(at)gmail(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: [BUGS] Breakage with VACUUM ANALYSE + partitions |
Date: | 2016-05-04 19:02:41 |
Message-ID: | 20160504190241.GG10850@tamriel.snowman.net |
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* Tom Lane (tgl(at)sss(dot)pgh(dot)pa(dot)us) wrote:
> Stephen Frost <sfrost(at)snowman(dot)net> writes:
> > * Tom Lane (tgl(at)sss(dot)pgh(dot)pa(dot)us) wrote:
> >> * debugger ability to print variables symbolically
>
> > I might be misunderstanding what you're getting at here, but if you want
> > to be able to use #define'd values using their name, you can get that by
> > compiling with -g3. With -g3 and gdb, you can do things like:
>
> > (gdb) p tblinfo[i].dobj.dump & ~(DUMP_COMPONENT_COMMENT |
> > DUMP_COMPONENT_SECLABEL | DUMP_COMPONENT_USERMAP | DUMP_COMPONENT_ACL)
>
> > where all the DUMP_COMPONENT items are #define's.
>
> Yes, but if you just do "p tblinfo[i].dobj.dump", you're only going to get
> a number, right? The value-added for an enum type is that the debugger
> knows which symbol to substitute for a numeric value when printing. But
> that stops working if what's in the variable is some OR of the values the
> debugger knows about.
Ah, yeah, that's true. -g3, unsurprisingly, doesn't help with
displaying a random int value using some set of #define's.
Thanks!
Stephen
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