mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-30 03:22:14 +00:00
64 lines
2.9 KiB
SQL
64 lines
2.9 KiB
SQL
-- input is table(test text, query text, run UInt32, version int, metrics Array(float))
|
|
select
|
|
arrayMap(x -> floor(x, 4), original_medians_array.medians_by_version[1] as l) l_rounded,
|
|
arrayMap(x -> floor(x, 4), original_medians_array.medians_by_version[2] as r) r_rounded,
|
|
arrayMap(x, y -> floor((y - x) / x, 3), l, r) diff_percent,
|
|
arrayMap(x, y -> floor(x / y, 3), threshold, l) threshold_percent,
|
|
test, query
|
|
from
|
|
(
|
|
-- quantiles of randomization distributions
|
|
select quantileExactForEach(0.99)(
|
|
arrayMap(x, y -> abs(x - y), metrics_by_label[1], metrics_by_label[2]) as d
|
|
) threshold
|
|
---- uncomment to see what the distribution is really like
|
|
--, uniqExact(d.1) u
|
|
--, arraySort(x->x.1,
|
|
-- arrayZip(
|
|
-- (sumMap([d.1], [1]) as f).1,
|
|
-- f.2)) full_histogram
|
|
from
|
|
(
|
|
-- make array 'random label' -> '[median metric]'
|
|
select virtual_run, groupArrayInsertAt(median_metrics, random_label) metrics_by_label
|
|
from (
|
|
-- get [median metric] arrays among virtual runs, grouping by random label
|
|
select medianExactForEach(metrics) median_metrics, virtual_run, random_label
|
|
from (
|
|
-- randomly relabel measurements
|
|
select *, toUInt32(rowNumberInAllBlocks() % 2) random_label
|
|
from (
|
|
select metrics, number virtual_run
|
|
from
|
|
-- strip the query away before the join -- it might be several kB long;
|
|
(select metrics, run, version from table) no_query,
|
|
-- duplicate input measurements into many virtual runs
|
|
numbers(1, 10000) nn
|
|
-- for each virtual run, randomly reorder measurements
|
|
order by virtual_run, rand()
|
|
) virtual_runs
|
|
) relabeled
|
|
group by virtual_run, random_label
|
|
) virtual_medians
|
|
group by virtual_run -- aggregate by random_label
|
|
) virtual_medians_array
|
|
-- this select aggregates by virtual_run
|
|
) rd,
|
|
(
|
|
select groupArrayInsertAt(median_metrics, version) medians_by_version
|
|
from
|
|
(
|
|
select medianExactForEach(metrics) median_metrics, version
|
|
from table
|
|
group by version
|
|
) original_medians
|
|
) original_medians_array,
|
|
(
|
|
select any(test) test, any(query) query from table
|
|
) any_query,
|
|
(
|
|
select throwIf(uniq((test, query)) != 1) from table
|
|
) check_single_query -- this subselect checks that there is only one query in the input table;
|
|
-- written this way so that it is not optimized away (#10523)
|
|
;
|