# Comparison.column_summary()


Get a per-column summary of value mismatches.


Usage

``` python
Comparison.column_summary()
```


## Returns


`Any`  
A table (Polars if available, else Pandas) with one row per compared column: the source and target column names and data types, the number of matched rows whose values differ (`n_mismatch`), and that number as a fraction of matched rows (`f_mismatch`).