Tad bit late on this, but hopefully helpful for future users:

The way this function is written is in the arrow function form but it's ultimately the exact same thing as doing the regular function declaration form that you wrote. Just returns 1 line instead and makes the code look more clean.

Changed description with an additional SQL block.

All languages share the same description, in SQL katas, you should normally follow the instructions in the comments they're specific for SQL only.

The task asks for "an array: [area, volume]" but the comments and tests want "a query with columns: width, height, depth, area (int), volume (int)"

(note: the user is trying sql)

How exactly they do not match? Can you give an example?

The task instructions do not match the comment instructions or the expected results

This solution isn't pure.

This solution isn't pure

How do I downvote this?

How would this work with non-number types?

This solution would be better if it used a named constant instead of the abstract value.

I think it's bad practice to modify a parameter within a function unless that's the purpose of the function.