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Re: Largeobject Access Controls and pg_migrator

From: Takahiro Itagaki <itagaki(dot)takahiro(at)oss(dot)ntt(dot)co(dot)jp>
To: Bruce Momjian <bruce(at)momjian(dot)us>
Cc: KaiGai Kohei <kaigai(at)kaigai(dot)gr(dot)jp>, KaiGai Kohei <kaigai(at)ak(dot)jp(dot)nec(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Largeobject Access Controls and pg_migrator
Date: 2009-12-14 00:26:23
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Lists: pgsql-hackers
KaiGai Kohei <kaigai(at)kaigai(dot)gr(dot)jp> wrote:

> Can SELECT lo_create(16385); help this situation?

SELECT lo_create(loid) FROM (SELECT DISTINCT loid FROM pg_largeobject) AS t

would work for pg_migrator.

> I'm not clear whether we also check pg_largeobejct has chunks with same
> LOID on lo_create(). In the regular operation, it shall never happen.

I think the omission is a reasonable optimization.

Takahiro Itagaki
NTT Open Source Software Center

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Subject: Re: Largeobject Access Controls (r2460)
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