| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Noah Misch <noah(at)leadboat(dot)com> |
| Cc: | Simon Riggs <simon(at)2ndQuadrant(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: ALTER TYPE 0: Introduction; test cases |
| Date: | 2011-01-11 13:56:27 |
| Message-ID: | D27B8DE2-ED97-4A76-9F7B-0312E754F87B@gmail.com |
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| Lists: | pgsql-hackers |
On Jan 11, 2011, at 8:50 AM, Noah Misch <noah(at)leadboat(dot)com> wrote:
> Okay; I'll see what I can come up with. The other part I was going to try to
> finish before the last commitfest begins is avoiding unnecessary rebuilds of
> indexes involving changed columns. Is that more or less important than having
> an EXPLAIN ALTER TABLE?
I think something like EXPLAIN ALTER TABLE would be #%^* awesome (and kudos to Simon for thinking of it), but your chances of getting into 9.1 are not very good. So I'd focus on the index rebuild issue, which is more clear-cut.
...Robert
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