doris

Files

Jerry Hu c03a19ea23 [improvement](bitmap) Using set to store a small number of elements to improve performance (#19973 )

Test on SSB 100g:

select lo_suppkey, count(distinct lo_linenumber) from lineorder group by lo_suppkey;
exec time: 4.388s

create materialized view:

create materialized view customer_uv as select lo_suppkey, bitmap_union(to_bitmap(lo_linenumber)) from lineorder group by lo_suppkey;
select lo_suppkey, count(distinct lo_linenumber) from lineorder group by lo_suppkey;
exec time: 12.908s

test with the patch, exec time: 5.790s

2023-05-31 16:13:42 +08:00

aggregate_functions

[chore](build) Use include-what-you-use to optimize includes (PART III) (#18958 )

2023-04-24 14:51:51 +08:00

columns

[chore](build) Use include-what-you-use to optimize includes (PART III) (#18958 )

2023-04-24 14:51:51 +08:00

core

[improvement](bitmap) Using set to store a small number of elements to improve performance (#19973 )

2023-05-31 16:13:42 +08:00

data_types

[refactor](exec) replace the single pointer with an array of 'conjuncts' in ExecNode (#19758 )