bug in vacuumlo?

Started by Irina Sourikovaalmost 23 years ago4 messagespatches
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#1Irina Sourikova
irina@bnl.gov

Hi,

I tried to use vacuumlo of posgres-7.3.4/contrib/vacuumlo and it didn't
work
for me until I added one line:

strcat(buf, " AND c.relname <> 'vacuum_l'");

after strcat(buf, "SELECT c.relname, a.attname ");
strcat(buf, "FROM pg_class c, pg_attribute a, pg_type t ");
strcat(buf, "WHERE a.attnum > 0 ");
strcat(buf, " AND a.attrelid = c.oid ");
strcat(buf, " AND a.atttypid = t.oid ");
strcat(buf, " AND t.typname in ('oid', 'lo') ");
strcat(buf, " AND c.relkind = 'r'");

Is it a bug or I'm missing something?

Thank you,
Irina
irina@bnl.gov

#2Tom Lane
tgl@sss.pgh.pa.us
In reply to: Irina Sourikova (#1)
Re: bug in vacuumlo?

Irina Sourikova <irina@bnl.gov> writes:

I tried to use vacuumlo of posgres-7.3.4/contrib/vacuumlo and it didn't
work
for me until I added one line:
strcat(buf, " AND c.relname <> 'vacuum_l'");

Hmm. This bug was patched last year in CVS tip, but apparently not in
the 7.3 branch. Sigh.

regards, tom lane

#3Christopher Kings-Lynne
chriskl@familyhealth.com.au
In reply to: Irina Sourikova (#1)
Re: bug in vacuumlo?

Do we need a 'AND NOT a.attisdropped' in there anywhere as well?

Chris

On Tue, 23 Sep 2003, Irina Sourikova wrote:

Show quoted text

Hi,

I tried to use vacuumlo of posgres-7.3.4/contrib/vacuumlo and it didn't
work
for me until I added one line:

strcat(buf, " AND c.relname <> 'vacuum_l'");

after strcat(buf, "SELECT c.relname, a.attname ");
strcat(buf, "FROM pg_class c, pg_attribute a, pg_type t ");
strcat(buf, "WHERE a.attnum > 0 ");
strcat(buf, " AND a.attrelid = c.oid ");
strcat(buf, " AND a.atttypid = t.oid ");
strcat(buf, " AND t.typname in ('oid', 'lo') ");
strcat(buf, " AND c.relkind = 'r'");

Is it a bug or I'm missing something?

Thank you,
Irina
irina@bnl.gov

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#4Tom Lane
tgl@sss.pgh.pa.us
In reply to: Christopher Kings-Lynne (#3)
Re: bug in vacuumlo?

Christopher Kings-Lynne <chriskl@familyhealth.com.au> writes:

Do we need a 'AND NOT a.attisdropped' in there anywhere as well?

Hm, probably a good idea, although in the current state of the code
it theoretically shouldn't matter. (DROP COLUMN zeroes atttypid,
so that part of the join won't succeed. But vacuumlo shouldn't depend
on it.) I've applied a patch.

regards, tom lane