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Thread: create table if not exists xx AS select ...

create table if not exists xx AS select ...

From
Daniel Caldeweyher
Date:
Hi All,

I am not entirely sure if this is a bug (fails on 9.3 and 9.4) or working as intended:

create table if not exists test (
foo boolean
);

create table if not exists test2 as 
select * from test where 1=0;
/*
ERROR:  syntax error at or near "as"
LINE 1: create table if not exists test2 as 
*/

create table test2 as 
select * from test where 1=0;

Thanks

Daniel

Re: create table if not exists xx AS select ...

From
Michael Paquier
Date:
On Mon, Mar 23, 2015 at 10:28 AM, Daniel Caldeweyher
<daniel.caldeweyher@pricefinder.com.au> wrote:
> I am not entirely sure if this is a bug (fails on 9.3 and 9.4) or working as
> intended:
> [...]
> create table test2 as
> select * from test where 1=0;

This works as intended, CREATE TABLE AS does not support IF NOT EXISTS
in 9.4 and 9.3:
http://www.postgresql.org/docs/9.3/static/sql-createtableas.html
http://www.postgresql.org/docs/9.4/static/sql-createtableas.html
But it does in 9.5 and onwards:
http://www.postgresql.org/docs/devel/static/sql-createtableas.html
Regards,
--
Michael

Re: create table if not exists xx AS select ...

From
Daniel Caldeweyher
Date:
Thanks Michael,

I suppose I should have checked the docs for CREATE TABLE AS and not just CREATE TABLE :)

Regards,
Daniel


On Mon, Mar 23, 2015 at 11:41 AM, Michael Paquier <michael.paquier@gmail.com> wrote:
On Mon, Mar 23, 2015 at 10:28 AM, Daniel Caldeweyher
<daniel.caldeweyher@pricefinder.com.au> wrote:
> I am not entirely sure if this is a bug (fails on 9.3 and 9.4) or working as
> intended:
> [...]
> create table test2 as
> select * from test where 1=0;

This works as intended, CREATE TABLE AS does not support IF NOT EXISTS
in 9.4 and 9.3:
http://www.postgresql.org/docs/9.3/static/sql-createtableas.html
http://www.postgresql.org/docs/9.4/static/sql-createtableas.html
But it does in 9.5 and onwards:
http://www.postgresql.org/docs/devel/static/sql-createtableas.html
Regards,
--
Michael

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