ClickHouse中各表空间占用统计

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select table,   sum(rows) as row,   formatReadableSize(sum(bytes_on_disk)) as bytes_on_disk,   formatReadableSize(sum(data_uncompressed_bytes)) as ysq,   formatReadableSize(sum(data_compressed_bytes)) as ysh,   round(sum(data_compressed_bytes) / sum(data_uncompressed_bytes) * 100, 0) ys_rate from system.parts group by table order by sum(data_compressed_bytes) desc;
select   sum(rows) as row,   formatReadableSize(sum(bytes_on_disk)) as bytes_on_disk,   formatReadableSize(sum(data_uncompressed_bytes)) as ysq,   formatReadableSize(sum(data_compressed_bytes)) as ysh,   round(sum(data_compressed_bytes) / sum(data_uncompressed_bytes) * 100, 0) ys_rate from system.parts