-- { echo }
select view_name, read_rows, read_bytes, written_rows, written_bytes from system.query_views_log where startsWith(view_name, currentDatabase() || '.mv') order by view_name format Vertical;
Row 1:
──────
view_name:     default.mv1
read_rows:     1000000
read_bytes:    4000000
written_rows:  1000000
written_bytes: 4000000

Row 2:
──────
view_name:     default.mv2
read_rows:     1000000
read_bytes:    4000000
written_rows:  1000000
written_bytes: 4000000
select read_rows, read_bytes, written_rows, written_bytes from system.query_log where type = 'QueryFinish' and query_kind = 'Insert' and current_database = currentDatabase() format Vertical;
Row 1:
──────
read_rows:     3000000
read_bytes:    16000000
written_rows:  3000000
written_bytes: 12000000