| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: [COMMITTERS] pgsql: Remove too-smart-for-its-own-good optimization of not overwriting |
| Date: | 2010-01-05 04:03:48 |
| Message-ID: | 603c8f071001042003k77fe55a1u28624fcb37101443@mail.gmail.com |
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| Lists: | pgsql-committers pgsql-hackers |
On Mon, Jan 4, 2010 at 11:03 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Robert Haas <robertmhaas(at)gmail(dot)com> writes:
>> I think you're dismissing the idea too cavalierly. If A generates B,
>> A is inevitably changed frequently, but the changes to A affect B only
>> rarely, this is a good trick.
>
> The only output file that is unlikely to change is schemapg.h, which is
> depended on by exactly one .c file. It's a waste of time to try to
> optimize this at all ...
OK, fair enough.
...Robert
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