On Sun, Oct 25, 2009 at 9:05 AM, Robert Haas <robertmh...@gmail.com> wrote:
> Arguably, you would expect parameters set using this syntax to be
> stored similar to reloptions - that is, as text[].  But as we're going
> to need these values multiple times per table to plan any non-trivial
> query, I don't want to inject unnecessary parsing overhead and code
> complexity.

Two comments, perhaps complementary, though I'm not sure of either answer.

1 Would we rather the storage scheme allow for future GUCs to be
easily moved to per-tablespace as well without changing the catalog
schema for every option? (Someone might accuse me of trolling the
anti-EAV people here though...)

2 Would it make sense to slurp these options from the tablespace
options into the relcache when building the relcache entry for a
table? That would make the storage format in the tablespace options
much less relevant. It might even make the catcache less important
too.

-- 
greg

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