[DB-SIG] paramstyles (mysql string length?)

Gerhard Häring gh at ghaering.de
Wed Apr 19 16:46:04 CEST 2006

M.-A. Lemburg wrote:
> Carsten Haese wrote:
>>On Wed, 2006-04-19 at 08:24, M.-A. Lemburg wrote:
>>>I've found the qmark style to be sufficient for everything
>>I agree. Considering that many modules already support qmark, and those
>>that currently use 'format'/'pyformat' would have to move to something
>>else if these are dropped, I'd like to suggest that supporting 'qmark'
>>style should become a required feature. Modules would be free to also
>>implement 'named' and/or 'numeric', but supporting 'qmark' should be
> I'm not sure whether that's easily possible for database modules
> which rely on different marker mechanisms, e.g. some modules
> probably use the implicit type information in the pyformat style
> to find out which method to use for binding variables.

The ones I know about (pysqlite 1.x, pyPgSQL, psycopg, MySQLdb) all only 
look at the Python values, not at the pyformat format character for 
deciding how to bind the variable.

-- Gerhard

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