| From: | Greg Stark <stark(at)mit(dot)edu> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Andres Freund <andres(at)2ndquadrant(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Stephen Frost <sfrost(at)snowman(dot)net>, Atri Sharma <atri(dot)jiit(at)gmail(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>, Noah Misch <noah(at)leadboat(dot)com>, Peter Geoghegan <pg(at)heroku(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: ALTER TABLE lock strength reduction patch is unsafe Reply-To: |
| Date: | 2014-03-04 22:41:55 |
| Message-ID: | CAM-w4HM-JVTSs1czXQSZUpE8PD+egv10q0E7qGVrc9aC9mvNgQ@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Tue, Mar 4, 2014 at 8:08 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> CREATE INDEX CONCURRENTLY, otoh, already did break pg_dump,
> and we had to hack things to fix it; see commit
> 683abc73dff549e94555d4020dae8d02f32ed78b.
Well pg_dump was only broken in that there was a new catalog state to
deal with. But the commit you linked to was fixing pg_upgrade which
was broken because the on-disk schema was then out of sync with what
pg_dump would generate. But that should only matter for creating or
deleting whole relations.
--
greg
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