> -----Original Message-----
> From: Thom Brown [mailto:t...@linux.com] 
> Sent: Wednesday, September 29, 2010 2:08 PM
> To: PGSQL Mailing List
> Subject: Prepared statements and unknown types
> 
> Could someone explain why the following doesn't work?
> 
> test=# PREPARE meow(unknown) AS
> test-# SELECT $1 as meow;
> ERROR:  could not determine data type of parameter $1
> 
> The problem is that using PDO in PHP, prepared statements 
> aren't possible if values are used instead of columns in the 
> select list.
> 
> This appears to be allowed for MySQL and SQL Server.
> 
> --
> Thom Brown
> Twitter: @darkixion
> IRC (freenode): dark_ixion
> Registered Linux user: #516935
> 

Sorry, for being late to this conversation.
Possibly it works for SQL Server, because SS has SQL_VARIANT data type
(kind of "anytype").

Regards,
Igor Neyman

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