Re: Confusion over Python drivers

From: "Greg Sabino Mullane" <greg(at)turnstep(dot)com>
To: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Confusion over Python drivers
Date: 2010-02-11 17:08:30
Message-ID: 1ab8bf7aa82cc6940c833e922a152cd1@biglumber.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers


-----BEGIN PGP SIGNED MESSAGE-----
Hash: RIPEMD160

>>The solution is to write the query in an unambiguous way:
>>
>> SELECT $1::date + 1;
>>
>>which is good practice, anyway. If it's not obvious to the type
>>inference system, it's probably not obvious to you, and will probably
>>surprise you ;)
>
> That address this specific case, but it's ugly and not general. The right
> thing is to set the correct type when you're marshalling the parameters...

Well, ugly is in the eye of the beholder, and it certainly is a general
solution. Any query with ambiguity in its parameters should explicitly
declare the types, inside the query itself. Having the driver indicate
the type should be the exception, not the rule.

- --
Greg Sabino Mullane greg(at)turnstep(dot)com
End Point Corporation http://www.endpoint.com/
PGP Key: 0x14964AC8 201002091811
http://biglumber.com/x/web?pk=2529DF6AB8F79407E94445B4BC9B906714964AC8
-----BEGIN PGP SIGNATURE

In response to

Responses

Browse pgsql-hackers by date

  From Date Subject
Next Message Kris Jurka 2010-02-11 17:23:03 Re: TCP keepalive support for libpq
Previous Message Tollef Fog Heen 2010-02-11 17:08:03 Re: TCP keepalive support for libpq