Re: Re: [BUGS] BUG #7515: DROP TABLE IF EXISTS fails if schema does not exist

2013/1/25 Bruce Momjian <bruce@momjian.us>:
> On Sun, Sep  2, 2012 at 05:40:54PM +0000, james@illusorystudios.com wrote:
>> The following bug has been logged on the website:
>>
>> Bug reference:      7515
>> Logged by:          James Bellinger
>> Email address:      james@illusorystudios.com
>> PostgreSQL version: 9.1.5
>> Operating system:   Ubuntu Linux 12.04 Server
>> Description:
>>
>> If the table being referenced has a schema in its name, and the schema does
>> not exist, DROP TABLE IF EXISTS will have an ERROR instead of a NOTICE.
>>
>> So for instance,
>> DROP TABLE IF EXISTS bar;
>> This is a NOTICE if bar does not exist.
>>
>> DROP TABLE IF EXISTS foo.bar;
>> This is an ERROR if foo does not exist, even though that implies bar does
>> not exist which means it should be a NOTICE.
>>
>> Saw this because it was making a drop/recreate transaction fail on me, after
>> I changed some code to use a schema.
>
> I looked at this bug report from September.  The problem is that
> LookupExplicitNamespace() doesn't have a missing_ok parameter, even
> though get_namespace_oid(), which it calls, does.  By adding a
> missing_ok parameter and passing it cleanly, I fixed the problem:
>
>         test=> DROP TABLE IF EXISTS foo.bar;
>         NOTICE:  table "bar" does not exist, skipping
>         DROP TABLE
>
> Patch attached.
>

+1

Pavel

> --
>   Bruce Momjian  <bruce@momjian.us>        http://momjian.us
>   EnterpriseDB                             http://enterprisedb.com
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>   + It's impossible for everything to be true. +
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