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25 Commits

Author SHA1 Message Date
Nikita Taranov
bd89fcafdb
Make SortDescription::column_name always non-empty (#35805) 2022-04-04 14:17:15 +02:00
Maksim Kita
cbe059f4bd Updated IColumn interface to support getting stable permutation 2022-03-10 21:45:31 +00:00
Maksim Kita
765cd09d06 MergeTree improve insert performance 2022-03-10 21:45:31 +00:00
Maksim Kita
9c91a50050 Sort block refactoring 2022-01-29 15:50:55 +00:00
Amos Bird
04cff632db
Revise 2022-01-29 20:55:52 +08:00
Amos Bird
2b3ce910c6
Fix collation check 2022-01-29 04:49:58 +08:00
Amos Bird
09a3ab79b7
Fix all const 2022-01-29 01:37:39 +08:00
Amos Bird
faee95b897
Make ORDER BY tuple almost as fast as ORDER BY columns 
We have special optimizations for multiple column ORDER BY: https://github.com/ClickHouse/ClickHouse/pull/10831 . It's beneficial to also apply to tuple columns.

Before:

select * from numbers(300000000) order by (1 - number , number + 1 , number) limit 10;
2.613 sec.

After:

select * from numbers(300000000) order by (1 - number , number + 1 , number) limit 10;
0.755 sec

No tuple:

select * from numbers(300000000) order by 1 - number , number + 1 , number limit 10;
0.755 sec
 2022-01-27 21:42:08 +08:00
Pavel Kruglov
4d399fff3e Support collation for Array and Tuple 2020-11-03 17:09:37 +03:00
Pavel Kruglov
2892252b36 Support collate in LowCardinality(String) and Nullable(String) and refactor ColumnString 2020-11-03 17:06:21 +03:00
Alexey Milovidov
059646743b Remove OpenCL 2020-09-19 17:20:00 +03:00
Nikita Mikhaylov
f04d67b688 better 2020-09-09 15:41:51 +03:00
Nikita Mikhaylov
8793281e3e remove cout 2020-09-07 17:02:59 +03:00
Nikita Mikhaylov
c09d86e5e4 another fixes 2020-09-07 16:15:04 +03:00
Alexey Milovidov
4dcdad2f08 Fix ORDER BY tuple with COLLATE on const column 2020-06-28 23:55:45 +03:00
Alexey Milovidov
28c446e9a5 Whitespace 2020-06-28 23:51:14 +03:00
Alexey Milovidov
6a8659ab34 Whitespace 2020-06-28 23:49:13 +03:00
Nikita Mikhaylov
b48deb91ac comments and styles 2020-05-25 17:33:31 +03:00
Nikita Mikhaylov
b7adfc7c07 Merge branch 'master' of github.com:ClickHouse/ClickHouse into MorozovVasily-UpdatePermutation 2020-05-25 17:26:30 +03:00
Artem Zuikov
97c7447130
Bitonic sort improvements (#10934) 2020-05-19 00:41:23 +03:00
Vasily Morozov
876fff1938 fix build and style 2020-05-18 13:16:49 +03:00
Vasily Morozov
ca1bf06498 updatePermutation 2020-05-18 13:16:49 +03:00
Artem Zuikov
8e8a2a17d6 build fixes 2020-05-15 03:01:31 +03:00
Ri
fc7afaa639
Bitonic sort on GPU (OpenCL) (#10232) 2020-05-15 03:01:14 +03:00
Ivan Lezhankin
06446b4f08 dbms/ → src/ 2020-04-03 18:14:31 +03:00