Thread: execute_values
Can I use pyscopy2.extras.execute_values with a prepared statement?
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Gerard Weatherby| Application Architect
NMRbox | Department of Molecular Biology and Biophysics | UConn Health
263 Farmington Avenue, Farmington, CT 06030-6406
Phone: 860 679 8484
uchc.edu
On 7/9/19 11:04 AM, Weatherby,Gerard wrote:
> Can I use pyscopy2.extras.execute_values with a prepared statement?
I don't think so as you cannot pass in VALUES():
cur.execute('prepare pt(integer, varchar, boolean) AS INSERT INTO
prepare_test values ($1, $2, $3)')
execute_values(cur, 'EXECUTE pt(%s)', [(2, 'test', 'f'),])
SyntaxError: wrong number of parameters for prepared statement "pt"
DETAIL: Expected 3 parameters but got 1.
execute_batch works though:
execute_batch(cur, 'EXECUTE pt(%s, %s, %s)', [(2, 'test', 'f'), (3,
'dog', 't')])
>
>
> --
> *Gerard Weatherby*| Application Architect
> NMRbox | Department of Molecular Biology and Biophysics | UConn Health
> 263 Farmington Avenue, Farmington, CT 06030-6406
> Phone: 860 679 8484
> uchc.edu
--
Adrian Klaver
adrian.klaver@aklaver.com
My insert has a "returning clause," I don't think execute batch supports that.
--
Gerard Weatherby| Application Architect
NMRbox | Department of Molecular Biology and Biophysics | UConn Health
263 Farmington Avenue, Farmington, CT 06030-6406
Phone: 860 679 8484
uchc.edu
________________________________________
From: Adrian Klaver <adrian.klaver@aklaver.com>
Sent: Tuesday, July 9, 2019 4:25 PM
To: Weatherby,Gerard; pgsql-general@lists.postgresql.org
Subject: Re: execute_values
On 7/9/19 11:04 AM, Weatherby,Gerard wrote:
> Can I use pyscopy2.extras.execute_values with a prepared statement?
I don't think so as you cannot pass in VALUES():
cur.execute('prepare pt(integer, varchar, boolean) AS INSERT INTO
prepare_test values ($1, $2, $3)')
execute_values(cur, 'EXECUTE pt(%s)', [(2, 'test', 'f'),])
SyntaxError: wrong number of parameters for prepared statement "pt"
DETAIL: Expected 3 parameters but got 1.
execute_batch works though:
execute_batch(cur, 'EXECUTE pt(%s, %s, %s)', [(2, 'test', 'f'), (3,
'dog', 't')])
>
>
> --
> *Gerard Weatherby*| Application Architect
> NMRbox | Department of Molecular Biology and Biophysics | UConn Health
> 263 Farmington Avenue, Farmington, CT 06030-6406
> Phone: 860 679 8484
> uchc.edu
--
Adrian Klaver
adrian.klaver@aklaver.com
On 7/10/19 5:09 AM, Weatherby,Gerard wrote:
> My insert has a "returning clause," I don't think execute batch supports that.
Well it will execute, it just will not return the values to you:(
What is your query and what are you doing with it?
>
> --
> Gerard Weatherby| Application Architect
> NMRbox | Department of Molecular Biology and Biophysics | UConn Health
> 263 Farmington Avenue, Farmington, CT 06030-6406
> Phone: 860 679 8484
> uchc.edu
>
> ________________________________________
> From: Adrian Klaver <adrian.klaver@aklaver.com>
> Sent: Tuesday, July 9, 2019 4:25 PM
> To: Weatherby,Gerard; pgsql-general@lists.postgresql.org
> Subject: Re: execute_values
>
> On 7/9/19 11:04 AM, Weatherby,Gerard wrote:
>> Can I use pyscopy2.extras.execute_values with a prepared statement?
>
> I don't think so as you cannot pass in VALUES():
>
> cur.execute('prepare pt(integer, varchar, boolean) AS INSERT INTO
> prepare_test values ($1, $2, $3)')
>
> execute_values(cur, 'EXECUTE pt(%s)', [(2, 'test', 'f'),])
>
> SyntaxError: wrong number of parameters for prepared statement "pt"
> DETAIL: Expected 3 parameters but got 1.
>
>
> execute_batch works though:
>
> execute_batch(cur, 'EXECUTE pt(%s, %s, %s)', [(2, 'test', 'f'), (3,
> 'dog', 't')])
>
>
>>
>>
>> --
>> *Gerard Weatherby*| Application Architect
>> NMRbox | Department of Molecular Biology and Biophysics | UConn Health
>> 263 Farmington Avenue, Farmington, CT 06030-6406
>> Phone: 860 679 8484
>> uchc.edu
>
>
> --
> Adrian Klaver
> adrian.klaver@aklaver.com
>
--
Adrian Klaver
adrian.klaver@aklaver.com