Better error messages when using lazy mode

[EtienneT]

Description

When doing a very large query using lazy mode, if there's any error in the query, you will get it when you call collect which is normal, but we are receiving errors like this in production:

polars.exceptions.ComputeError: cannot compare string with numeric type (i32)

Which column name, compared to which other column produced this error? Impossible to know. My query expression tree is constructed from several methods adding filters dynamically with a lot of columns, it is very difficult to investigate which column specifically has the wrong type in production when this doesn't happen locally.

But given that we are in a lazy query, we have all the query expression tree, so we could potentially at least return in the error message which column name are having a problem.

The only solution right now is to transform this big query in several chunk in eager mode and see where it will crash in production which is not ideal.