| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
| Cc: | Chris Hoover <revoohc(at)gmail(dot)com>, "pgsql-admin(at)postgresql(dot)org" <pgsql-admin(at)postgresql(dot)org> |
| Subject: | Re: free space map |
| Date: | 2006-06-20 15:32:57 |
| Message-ID: | 2389.1150817577@sss.pgh.pa.us |
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| Lists: | pgsql-admin |
Alvaro Herrera <alvherre(at)commandprompt(dot)com> writes:
> In CVS HEAD there is a pg_freespacemap contrib module that may do what
> you need. You'd have to "backport" it to 8.1 though; it doesn't compile
> as-is.
Looking at the CVS history, I think the main point is that freespace.c
did not formerly expose its internal data structures; the patch moved a
lot of declarations into freespace.h so that the contrib code could get
at them. You'd need to modify the 8.1 sources, but not by much.
regards, tom lane
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