field meaning in document

[Maplestory1998]

(you don't have to strictly follow this form)

Describe the issue in you document), there is an example which showing how to get Progress/Profile/Log Information on queries.

Progress information will report statistics on the number of rows and bytes that have been read and processed in ClickHouse.

I'm not sure exactly what "lines and bytes" means, whether it means compressed data or uncompressed data?

Additional context