Re: What is the problem with this query?

Hi, Christoph,

On Sun, Jul 23, 2017 at 5:30 PM, Christoph Moench-Tegeder
<cmt(at)burggraben(dot)net> wrote:
> ## Igor Korot (ikorot01(at)gmail(dot)com):
>
>> >> Is "IF" operator not supported by PostgreSQL
>> So how do I write this properly?
>
> There is documentation for that:
> https://www.postgresql.org/docs/current/static/sql-createindex.html

Except that IF NOT EXIST clause is introduced in 9.5.

And if the server is <= 9.4?

I tried to use a solution from here:
https://dba.stackexchange.com/questions/35616/create-index-if-it-does-not-exist.
but apparently I fail.

Thank you.

>
> Regards,
> Christoph
>
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