Description:
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I'm trying to execute a query similar to this:
INSERT INTO table (name, created_at) VALUES (:name, FROM_UNIXTIME(:created_at)::TIMESTAMP);

On postgres7.4. FROM_UNIXTIME is a custom function, I try to cast its value to TIMESTAMP using the '::' operator.

However, PDO thinks ':TIMESTAMP' is a name of another parameter, so it throws this exception: 'SQLSTATE[HY093]: Invalid parameter number: parameter was not defined'

Perhaps PDO should not treat '::' as a parameter or at least provide a way to escape ':'.