Le 30/11/2018 à 15:43, Ben Kietzman a écrit : > Hi Antoine, > > The conversion of previous blocks is part of the fall back mechanism I'm > trying to describe. When type inference fails (even in a different block), > conversion of all blocks of the column is attempted to the next type in the > fallback graph.
I see. What I mean is that conversion cannot be a simple cast from the previous type. For example, conversion to "int64" can lose some information (e.g. whitespace or leading zeros). So, when converting again from a different type, you must actually start back from the original textual data. I'm not sure your API would address that. Regards Antoine.
