Hi,

On 04/10/2016 16:15, Adam Baratz wrote:
>>
>>>> Well, I'm pretty sure Postgres won't be affected either way, because
>> its type system is such that you can't prepare a query where the types of
>> parameters can't be decided yet. A query like this simply gives an error.
>>>
>>> Firebird, oracle and mysql would have exactly the same problem. The
>>> prepare SQL script is invalid so prepare fails. If it works for dblib
>>> then I would consider THAT the bug. Parameters can only be assigned to
>>> fields identified in the prepared SQL. In this case :null has nothing to
>>> identify what it is to be prepared to populate.
>>
>> This is about *emulated* prepares, and AFAIK that means that the
>> database will never see the prepared statement.
> 
> 
> That's correct, but you can enable emulated prepares for whichever driver.
> A less confusing example might've been inserting :null into a nullable INT
> column and verifying that NULL was stored.

That's not ture. If memory serves, emulated prepares are only available
supported by the mysql and pgsql pdo drivers.


Cheers
-- 
Matteo Beccati

Development & Consulting - http://www.beccati.com/

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