Thread: Copy command to handle view for my export requirement

Siva Palanisamy <siva_p@hcl.com> wrote:

> Hi All,
>
>
>
> I understand that copy and \copy commands in PostgreSQL work only for tables. I
> want it to export the data from varies tables. Instead, I can create a view for
> the list of tables. Can the copy or \copy commands be utilized to operate on
> views directly? Please let me know on this.

Sure, you can do that (with recent versions) with:

copy (select * from your_view) to ...


Andreas
--
Really, I'm not out to destroy Microsoft. That will just be a completely
unintentional side effect.                              (Linus Torvalds)
"If I was god, I would recompile penguin with --enable-fly."   (unknown)
Kaufbach, Saxony, Germany, Europe.              N 51.05082°, E 13.56889°

Hi Andreas,

I tried the command as below. It failed. Please correct me.

\copy (select * from view1) to '/sample.csv' delimiters ',' csv header;
ERROR: \copy: parse error at "select"

Thanks and Regards,
Siva.


-----Original Message-----
From: pgsql-general-owner@postgresql.org [mailto:pgsql-general-owner@postgresql.org] On Behalf Of Andreas Kretschmer
Sent: Thursday, August 11, 2011 2:23 PM
To: pgsql-general@postgresql.org
Subject: Re: [GENERAL] Copy command to handle view for my export requirement

Siva Palanisamy <siva_p@hcl.com> wrote:

> Hi All,
>
>
>
> I understand that copy and \copy commands in PostgreSQL work only for tables. I
> want it to export the data from varies tables. Instead, I can create a view for
> the list of tables. Can the copy or \copy commands be utilized to operate on
> views directly? Please let me know on this.

Sure, you can do that (with recent versions) with:

copy (select * from your_view) to ...


Andreas
--
Really, I'm not out to destroy Microsoft. That will just be a completely
unintentional side effect.                              (Linus Torvalds)
"If I was god, I would recompile penguin with --enable-fly."   (unknown)
Kaufbach, Saxony, Germany, Europe.              N 51.05082°, E 13.56889°

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Hi Andreas,

FYI, I am using PostgreSQL 8.1.4.

Thanks and Regards,
Siva.


-----Original Message-----
From: pgsql-general-owner@postgresql.org [mailto:pgsql-general-owner@postgresql.org] On Behalf Of Siva Palanisamy
Sent: Thursday, August 11, 2011 4:48 PM
To: Andreas Kretschmer; pgsql-general@postgresql.org
Subject: Re: [GENERAL] Copy command to handle view for my export requirement

Hi Andreas,

I tried the command as below. It failed. Please correct me.

\copy (select * from view1) to '/sample.csv' delimiters ',' csv header;
ERROR: \copy: parse error at "select"

Thanks and Regards,
Siva.


-----Original Message-----
From: pgsql-general-owner@postgresql.org [mailto:pgsql-general-owner@postgresql.org] On Behalf Of Andreas Kretschmer
Sent: Thursday, August 11, 2011 2:23 PM
To: pgsql-general@postgresql.org
Subject: Re: [GENERAL] Copy command to handle view for my export requirement

Siva Palanisamy <siva_p@hcl.com> wrote:

> Hi All,
>
>
>
> I understand that copy and \copy commands in PostgreSQL work only for tables. I
> want it to export the data from varies tables. Instead, I can create a view for
> the list of tables. Can the copy or \copy commands be utilized to operate on
> views directly? Please let me know on this.

Sure, you can do that (with recent versions) with:

copy (select * from your_view) to ...


Andreas
--
Really, I'm not out to destroy Microsoft. That will just be a completely
unintentional side effect.                              (Linus Torvalds)
"If I was god, I would recompile penguin with --enable-fly."   (unknown)
Kaufbach, Saxony, Germany, Europe.              N 51.05082°, E 13.56889°

--
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::DISCLAIMER::
-----------------------------------------------------------------------------------------------------------------------

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It shall not attach any liability on the originator or HCL or its affiliates. Any views or opinions presented in
this email are solely those of the author and may not necessarily reflect the opinions of HCL or its affiliates.
Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of
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Hi,

COPY (SELECT ...) appeared in 8.2.x so you need to upgrade.

Best regards,
Zoltán Böszörményi

2011-08-11 13:21 keltezéssel, Siva Palanisamy írta:
> Hi Andreas,
>
> FYI, I am using PostgreSQL 8.1.4.
>
> Thanks and Regards,
> Siva.
>
>
> -----Original Message-----
> From: pgsql-general-owner@postgresql.org [mailto:pgsql-general-owner@postgresql.org] On Behalf Of Siva Palanisamy
> Sent: Thursday, August 11, 2011 4:48 PM
> To: Andreas Kretschmer; pgsql-general@postgresql.org
> Subject: Re: [GENERAL] Copy command to handle view for my export requirement
>
> Hi Andreas,
>
> I tried the command as below. It failed. Please correct me.
>
> \copy (select * from view1) to '/sample.csv' delimiters ',' csv header;
> ERROR: \copy: parse error at "select"
>
> Thanks and Regards,
> Siva.
>
>
> -----Original Message-----
> From: pgsql-general-owner@postgresql.org [mailto:pgsql-general-owner@postgresql.org] On Behalf Of Andreas Kretschmer
> Sent: Thursday, August 11, 2011 2:23 PM
> To: pgsql-general@postgresql.org
> Subject: Re: [GENERAL] Copy command to handle view for my export requirement
>
> Siva Palanisamy <siva_p@hcl.com> wrote:
>
>> Hi All,
>>
>>
>>
>> I understand that copy and \copy commands in PostgreSQL work only for tables. I
>> want it to export the data from varies tables. Instead, I can create a view for
>> the list of tables. Can the copy or \copy commands be utilized to operate on
>> views directly? Please let me know on this.
> Sure, you can do that (with recent versions) with:
>
> copy (select * from your_view) to ...
>
>
> Andreas
> --
> Really, I'm not out to destroy Microsoft. That will just be a completely
> unintentional side effect.                              (Linus Torvalds)
> "If I was god, I would recompile penguin with --enable-fly."   (unknown)
> Kaufbach, Saxony, Germany, Europe.              N 51.05082°, E 13.56889°
>
> --
> Sent via pgsql-general mailing list (pgsql-general@postgresql.org)
> To make changes to your subscription:
> http://www.postgresql.org/mailpref/pgsql-general
>
> ::DISCLAIMER::
>
-----------------------------------------------------------------------------------------------------------------------
>
> The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only.
> It shall not attach any liability on the originator or HCL or its affiliates. Any views or opinions presented in
> this email are solely those of the author and may not necessarily reflect the opinions of HCL or its affiliates.
> Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of
> this message without the prior written consent of the author of this e-mail is strictly prohibited. If you have
> received this email in error please delete it and notify the sender immediately. Before opening any mail and
> attachments please check them for viruses and defect.
>
>
-----------------------------------------------------------------------------------------------------------------------
>


--
----------------------------------
Zoltán Böszörményi
Cybertec Schönig & Schönig GmbH
Gröhrmühlgasse 26
A-2700 Wiener Neustadt, Austria
Web: http://www.postgresql-support.de
     http://www.postgresql.at/

Hi,

I have installed Windows version of Postgres 9.0.4 in my windows machine to test the new copy command as detailed in
thebelow e-mails. When I run the command in SQL Editor, I got permission error. But I am running as an administrator.  

COMMAND: copy (select * from employee) to 'C:/emp.csv'
ERROR:  could not open file "C:/emp.csv" for writing: Permission denied
********** Error **********
ERROR: could not open file "C:/emp.csv" for writing: Permission denied
SQL state: 42501

COMMAND: \copy (select * from employee) to 'C:/emp.csv'
ERROR:  syntax error at or near "\"
LINE 1: \copy (select * from employee) to 'C:/emp.csv'
        ^
********** Error **********
ERROR: syntax error at or near "\"
SQL state: 42601

Please correct me where I am going wrong. FYI, I am running under the administrator accounts of both Windows Login and
PostgreSQL. 

Thanks and Regards,
Siva.


-----Original Message-----
From: pgsql-general-owner@postgresql.org [mailto:pgsql-general-owner@postgresql.org] On Behalf Of Boszormenyi Zoltan
Sent: Thursday, August 11, 2011 5:11 PM
To: pgsql-general@postgresql.org
Subject: Re: [GENERAL] Copy command to handle view for my export requirement

Hi,

COPY (SELECT ...) appeared in 8.2.x so you need to upgrade.

Best regards,
Zoltán Böszörményi

2011-08-11 13:21 keltezéssel, Siva Palanisamy írta:
> Hi Andreas,
>
> FYI, I am using PostgreSQL 8.1.4.
>
> Thanks and Regards,
> Siva.
>
>
> -----Original Message-----
> From: pgsql-general-owner@postgresql.org [mailto:pgsql-general-owner@postgresql.org] On Behalf Of Siva Palanisamy
> Sent: Thursday, August 11, 2011 4:48 PM
> To: Andreas Kretschmer; pgsql-general@postgresql.org
> Subject: Re: [GENERAL] Copy command to handle view for my export requirement
>
> Hi Andreas,
>
> I tried the command as below. It failed. Please correct me.
>
> \copy (select * from view1) to '/sample.csv' delimiters ',' csv header;
> ERROR: \copy: parse error at "select"
>
> Thanks and Regards,
> Siva.
>
>
> -----Original Message-----
> From: pgsql-general-owner@postgresql.org [mailto:pgsql-general-owner@postgresql.org] On Behalf Of Andreas Kretschmer
> Sent: Thursday, August 11, 2011 2:23 PM
> To: pgsql-general@postgresql.org
> Subject: Re: [GENERAL] Copy command to handle view for my export requirement
>
> Siva Palanisamy <siva_p@hcl.com> wrote:
>
>> Hi All,
>>
>>
>>
>> I understand that copy and \copy commands in PostgreSQL work only for tables. I
>> want it to export the data from varies tables. Instead, I can create a view for
>> the list of tables. Can the copy or \copy commands be utilized to operate on
>> views directly? Please let me know on this.
> Sure, you can do that (with recent versions) with:
>
> copy (select * from your_view) to ...
>
>
> Andreas
> --
> Really, I'm not out to destroy Microsoft. That will just be a completely
> unintentional side effect.                              (Linus Torvalds)
> "If I was god, I would recompile penguin with --enable-fly."   (unknown)
> Kaufbach, Saxony, Germany, Europe.              N 51.05082°, E 13.56889°
>
> --
> Sent via pgsql-general mailing list (pgsql-general@postgresql.org)
> To make changes to your subscription:
> http://www.postgresql.org/mailpref/pgsql-general
>
> ::DISCLAIMER::
>
-----------------------------------------------------------------------------------------------------------------------
>
> The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only.
> It shall not attach any liability on the originator or HCL or its affiliates. Any views or opinions presented in
> this email are solely those of the author and may not necessarily reflect the opinions of HCL or its affiliates.
> Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of
> this message without the prior written consent of the author of this e-mail is strictly prohibited. If you have
> received this email in error please delete it and notify the sender immediately. Before opening any mail and
> attachments please check them for viruses and defect.
>
>
-----------------------------------------------------------------------------------------------------------------------
>


--
----------------------------------
Zoltán Böszörményi
Cybertec Schönig & Schönig GmbH
Gröhrmühlgasse 26
A-2700 Wiener Neustadt, Austria
Web: http://www.postgresql-support.de
     http://www.postgresql.at/


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On 11/08/2011 7:56 PM, Siva Palanisamy wrote:

 > FYI, I am using PostgreSQL 8.1.4.

Argh, ogod why?!?!?!

That version is *totally* unsupported on Windows. Not only that, but
you're running an ancient point-release - you are missing *19* patch
releases worth of bug fixes. The latest point-release is 8.1.23 !

Here is a list of all the fixes you are missing out on:

   http://www.postgresql.org/docs/8.1/static/release.html

> I have installed Windows version of Postgres 9.0.4 in my windows machine to test the new copy command as detailed in
thebelow e-mails. When I run the command in SQL Editor, I got permission error. But I am running as an administrator. 
>
> COMMAND: copy (select * from employee) to 'C:/emp.csv'
> ERROR:  could not open file "C:/emp.csv" for writing: Permission denied
> ********** Error **********
> ERROR: could not open file "C:/emp.csv" for writing: Permission denied
> SQL state: 42501

The COPY command (as distinct from \copy) runs on the server-side so it
has the permissions of the "postgres" user. You must save the file
somewhere the "postgres" user as write access. Either create a folder
and give "full control" to the user "postgres", or write the export
within the existing postgresql data directory.

> COMMAND: \copy (select * from employee) to 'C:/emp.csv'
> ERROR:  syntax error at or near "\"
> LINE 1: \copy (select * from employee) to 'C:/emp.csv'

You are not using psql. "\copy" is a psql command. I don't think it's
supported by PgAdmin III, though I could be wrong.



--
Craig Ringer