DataTable will not render if a column has only null values and a fmt defined

[mjbloch]

Steps To Reproduce

index.md

```sql test_error
    select 
        1 as value1,
        null as valueNull
```

<DataTable data={test_error}>
    <Column id=value1 fmt=num0/>
    <Column id=valueNull fmt=num0/>
</DataTable>

```sql test_no_error
    select 
        1 as value1,
        null as valueNull
```

<DataTable data={test_no_error}>
    <Column id=value1 fmt=num0/>
    <Column id=valueNull/>
</DataTable>

Environment

• Node version (node -v): v20.11.1
• npm version (npm -v): 10.2.4
• OS: mac
• Browser: Chrome
• Database: Redshift

Expected Behavior

Would expect to see all rows showing the null dashed line - for the formatted column.

Actual Behaviour

Entire table does not render as a result of single column. Shows this error message:

Workarounds

Coalesce nulls to a valid value.