Adjust Statistics::total_byte_size in Filter with a projection

[alamb]

Is your feature request related to a problem or challenge?

@Dandandan pointed out in https://github.com/apache/datafusion/pull/13187/files#r1824330274 that when applying a projection to a filter the resulting StatisticsCalculation is not properly updated

I think the global stats (total_byte_size) are not correct either, doesn't take into account the reduced number of columns. It should do something similar as stats_projection for ProjectionExec

However, I did not want to try and add that in the bugfix PR #13187 because:

• The total_byte_size calculation in filter also needs to take estimated selectivity into account
• The calculation of total_byte_size in stats_projection is also somewhat suspect as it only accounts for "fixed sized" rows but still claims the size is known precisely

Describe the solution you'd like

Account for the projection in the filter statistics calculation somehow

Describe alternatives you've considered

https://github.com/apache/datafusion/blob/ac79ef3442e65f6197c7234da9fad964895b9101/datafusion/physical-plan/src/projection.rs#L261-L260

Additional context

No response