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Apply expr predicates on zone map filtering #912
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Running performance benchmark on following SQL -- output string column, predicate on sort key
-- Q01
select max(length(s_name)) from lineorder_flat where (lo_orderkey * 2) > 1000000000;
-- Q02
select max(length(s_name)) from lineorder_flat where (lo_orderkey * 2) > 10000000;
-- Q03
select max(length(s_name)) from lineorder_flat where (lo_orderkey * 2) > 100000;
-- output int column, predicate on sort key
-- Q04
select max(lo_ordtotalprice) from lineorder_flat where (lo_orderkey * 2) > 1000000000;
-- Q05
select max(lo_ordtotalprice) from lineorder_flat where (lo_orderkey * 2) > 10000000;
-- Q06
select max(lo_ordtotalprice) from lineorder_flat where (lo_orderkey * 2) > 100000;
-- output string column, predicate on non-sort key
-- Q07
select max(length(s_name)) from lineorder_flat where (lo_partkey * 2) > 1000000;
-- Q08
select max(length(s_name)) from lineorder_flat where (lo_partkey * 2) > 10000;
-- Q09
select max(length(s_name)) from lineorder_flat where (lo_partkey * 2) > 100;
-- output int column, predicate on sort key
-- Q10
select max(lo_ordtotalprice) from lineorder_flat where (lo_partkey * 2) > 1000000;
-- Q11
select max(lo_ordtotalprice) from lineorder_flat where (lo_partkey * 2) > 10000;
-- Q12
select max(lo_ordtotalprice) from lineorder_flat where (lo_partkey * 2) > 100; This PR almost has no negative impact on performance.
And by looking into the profile, we can see there are a lot of rows (or files) that has been filtered by using zone map. This table has 600M rows in total.
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stdpain
approved these changes
Oct 29, 2021
Seaven
approved these changes
Oct 29, 2021
laotan332
approved these changes
Oct 29, 2021
related to: #870 |
trueeyu
approved these changes
Oct 29, 2021
caneGuy
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Mar 28, 2023
* Update DELETE and loading into Primary Key tables * Update PrimaryKeyLoad.md
caneGuy
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Mar 28, 2023
)" (StarRocks#923) This reverts commit 97506a6.
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ref: #803