Re: How about to have relnamespace and relrole?

From: Kyotaro HORIGUCHI <horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp>
To: Jim(dot)Nasby(at)BlueTreble(dot)com
Cc: andres(at)2ndquadrant(dot)com, robertmhaas(at)gmail(dot)com, tgl(at)sss(dot)pgh(dot)pa(dot)us, pgsql-hackers(at)postgresql(dot)org
Subject: Re: How about to have relnamespace and relrole?
Date: 2015-03-10 08:42:20
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Thank you for the correction.

At Wed, 4 Mar 2015 01:01:48 -0600, Jim Nasby <Jim(dot)Nasby(at)BlueTreble(dot)com> wrote in <54F6ADDC(dot)8030201(at)BlueTreble(dot)com>
> On 3/3/15 8:04 PM, Kyotaro HORIGUCHI wrote:
> >> >Note: The OID alias types don't sctrictly comply the transaction
> >> > isolation rules so do not use them where exact transaction
> >> > isolation on the values of these types has a
> >> > significance. Likewise, since they look as simple constants to
> >> > planner so you might get slower plans than the queries joining
> >> > the system tables correnspond to the OID types.
> Might I suggest:
> Note: The OID alias types do not completely follow transaction
> isolation rules. The planner also treats them as simple constants,
> which may result in sub-optimal planning.

Looks far simple and enough.
The note has been replaced with your sentence in the attached patch.


Kyotaro Horiguchi
NTT Open Source Software Center

Attachment Content-Type Size
0001-Add-regrole_v5.patch text/x-patch 19.2 KB
0002-Add-regnamespace_v5.patch text/x-patch 15.6 KB

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