Re: [HACKERS] reverse file descriptor to a file name...

>
> Oops...I must be using that wrong...I'm getting:
>
> NOTICE: Message from PostgreSQL backend: The Postmaster has informed me
> that some other backend died abnormally and possibly corrupted
> shared memory. I have rolled back the current transaction and am
> going to terminate your database system connection and exit.
> Please reconnect to the database system and repeat your query.
>
>
> relname is of type NameData ... NameData is a struct, so shouldn't
> it be:
>
> Relation->rd_rel->relname->data
>
> But, NameData only has one component, data...why make it a struct?

Yep, you are right. They make is a struct so they can pass it around
by-value, rather than the normal pointer by-reference for normal arrays.

Perhaps I should do a layout for the PostgreSQL data structures as I
have done a flowchart for the backend program files.

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