Re: [v9.2] DROP Reworks Part.1 - Consolidate routines to handle DropStmt

Excerpts from Robert Haas's message of mié jul 06 12:40:39 -0400 2011:

> This patch removes an impressive amount of boilerplate code and
> replaces it with something much more compact.   I like that.  In the
> interest of full disclosure, I suggested this approach to KaiGai at
> PGCon, so I'm biased: but even so, I'm pleasantly surprised by the
> amount of consolidation that appears possible here.

Yeah.  Myself, I love the fact that the dropmsgstrings thing is gone.  I
wonder if the routine to obtain "foo doesn't exist, skipping" messages
could be replaced by judicious use of getObjectDescription.

>  Here, we're essentially duplicating that information in another
> place, which doesn't seem good.  I think perhaps we should create a
> big static array, each row of which would contain:
> 
> - ObjectType
> - system cache ID for OID lookups
> - system catalog table OID for scans
> - attribute number for the name attribute, where applicable (see
> AlterObjectNamespace)
> - attribute number for the namespace attribute
> - attribute number for the owner attribute
> - ...and maybe some other properties

+1 for this general approach.

-- 
Álvaro Herrera <alvherre@commandprompt.com>
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