"... this provides the opportunity to fully utilize this and similar kind of functionalities, in the actual implementation, to gain the best performance."
Does anyone know if Class::DBI actually does this? (Uses optimal implementation-specific functionality, for example in Oracle?)
I read perldoc Class::DBI and the explanation for retreive_all doesn't say whether it does so. One of the reasons I have avoided Class::DBI is I worry its SQL must be heavily suboptimal to facilitate operation on everything from SQLite to Oracle. I remember reading a comment on PM from someone who was monitoring Class::DBI SQL queries in real time and reported being mildly horrified (I have never been able to find the post).
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