From: | Vincenzo Romano <vincenzo(dot)romano(at)notorand(dot)it> |
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To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Merlin Moncure <mmoncure(at)gmail(dot)com>, pgsql-general(at)postgresql(dot)org |
Subject: | Re: How to drop a temporary view? |
Date: | 2012-04-20 16:51:40 |
Message-ID: | CAHjZ2x6oJrZN_iv3cp5yunFLNFBX-oUBPpiwG3-CabQyYcZqTQ@mail.gmail.com |
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2012/4/20 Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>:
> Vincenzo Romano <vincenzo(dot)romano(at)notorand(dot)it> writes:
>> 2012/4/20 Vincenzo Romano <vincenzo(dot)romano(at)notorand(dot)it>:
>>> 2012/4/20 Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>:
>>>> You might be able to use "DROP VIEW pg_temp.foo", which will either
>>>> drop a temp view of your own session or throw an error if there is none.
>
>> It works only if you have created at least one temporary object.
>> Until that the pg_temp "meta schema" doesn't resolve to a real schema
>> and the exception is thrown!
>
> I didn't say *which* error would get thrown ;-). If you are checking
> that you'd need to be prepared for both cases.
>
> regards, tom lane
... WHEN OTHERS THEN NULL
should be pretty safe to DROP a VIEW!
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