Values ​​of "call" "rows" "wal_mb" calculated from sample_statements_total and sample_statements not equal

[Sshumeev]

Hi!

select SUM(st.calls) as call,
SUM(st.rows) as rows,
ROUND(SUM(st.wal_bytes)/1024/1024,2) as wal_MB,
count(DISTINCT(st.queryid)) AS statements_dist,
count(st.queryid) AS statements
FROM profile.sample_statements st
WHERE (st.sample_id >= 17173 and st.sample_id <=17178)
and st.server_id =2;

"call" "rows" "wal_mb" "statements_dist" "statements"
3299164 5609738 3022.36 170 572

select SUM(ss.calls) as call,
SUM(ss.rows) as rows,
ROUND(SUM(ss.wal_bytes)/1024/1024, 2) as wal_MB,
sum(ss.statements) AS statements
FROM profile.sample_statements_total ss
WHERE (ss.sample_id >= 17173 and ss.sample_id <=17178)
and ss.server_id =2;

"call" "rows" "wal_mb" "statements"
3938772 7465065 3331.10 10705

select count(sl.*) as cnt, count(DISTINCT(sl.queryid_md5)) as cnt_dist from profile.stmt_list sl where sl.server_id =2;
"cnt" "cnt_dist"
1508 1508

Statements - total count of captured statements

Please explain how the value "statements" = 10705 FROM profile.sample_statements_total is calculated (where it comes from)?

Why are the values ​​of "call" "rows" "wal_mb" calculated from sample_statements_total and sample_statements not equal?