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7532a1d564
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68 Commits

Author SHA1 Message Date
Alexey Milovidov
7532a1d564 Added support for NULLS FIRST and LAST in ORDER BY [#CLICKHOUSE-2882]. 2017-03-12 15:56:59 +03:00
Vitaliy Lyudvichenko
1572cf39fb Translate doc comments in IColumn.h to English. [#CLICKHOUSE-3] 2017-02-18 00:36:31 +04:00
alexey-milovidov
4593d363d1 Fix poor distributed insertion scalability (#481) 
* Fix poor scalability of INSERT into Distributed table [#CLICKHOUSE-2791].

* Fix poor scalability of INSERT into Distributed table (continued) [#CLICKHOUSE-2791].

* Misc [#CLICKHOUSE-2791].

* Fixed error [#CLICKHOUSE-2791].
 2017-02-12 00:20:57 +04:00
Alexey Milovidov
ffed6b1d5e Added one more column to system.parts [#CLICKHOUSE-2757]. 2017-01-17 23:54:32 +03:00
Alexey Arno
e822631310 dbms: cleanup [#METR-19266] 2016-08-18 18:58:46 +03:00
Alexey Arno
e2b6e10ec1 dbms: Various fixes + more comments [#METR-19266] 2016-08-10 22:12:29 +03:00
Alexey Arno
2514b2a04c dbms: simplifications, improvements, post-testing fixes. Unfinished, so do not pay attention to this commit. [#METR-19266] 2016-07-25 21:26:45 +03:00
Alexey Arno
dcbe183d41 dbms: merged with master [#METR-19266] 2016-07-11 13:09:16 +03:00
Alexey Milovidov
f5f38e1e50 Better support for tuples, arrays in SELECT DISTINCT [#METR-22035]. 2016-07-10 18:58:58 +03:00
Alexey Arno
582b8fb555 dbms: Server: Feature development. [#METR-19266] 2016-07-05 19:23:37 +03:00
Alexey Milovidov
68f0bd03db Fixed error with parsing bad arrays [#METR-21885]. 2016-06-28 23:45:28 +03:00
Alexey Milovidov
4c7eb03b63 Using std::shared_ptr for data types [#METR-21503]. 2016-05-28 13:35:44 +03:00
Alexey Milovidov
4b7f461e46 Using std::shared_ptr for columns [#METR-21503]. 2016-05-28 08:31:36 +03:00
Alexey Milovidov
2403636033 Preparation [#METR-21503]. 2016-05-28 03:14:10 +03:00
Alexey Milovidov
f7c09d58a5 Attempt to improve performance [#METR-20892]. 2016-04-15 03:33:21 +03:00
Alexey Milovidov
8b3afeb60d Squashed commit of the following: 
commit f968e7e7f0d84c89fd26dea1d541bd9f6041d7c8
Author: Alexey Milovidov <milovidov@yandex-team.ru>
Date:   Tue Feb 16 06:11:29 2016 +0300

    Addition [#METR-2944].

commit 7524981fa7c4f22929dd5009444a0ae28500f620
Author: Alexey Milovidov <milovidov@yandex-team.ru>
Date:   Tue Feb 16 06:08:43 2016 +0300

    Fixed error (incomplete) [#METR-2944].

commit 2f1e7bf9f46cd9ce958ade9041c00ce067940fd2
Author: Alexey Milovidov <milovidov@yandex-team.ru>
Date:   Tue Feb 16 05:37:43 2016 +0300

    Improving performance of row formats [#METR-2944].

commit 9848910f235863c9571ef1ebe0d87d4929ee283c
Author: Alexey Milovidov <milovidov@yandex-team.ru>
Date:   Tue Feb 16 00:37:12 2016 +0300

    Improving performance of text formats [#METR-2944].

commit 3aedc7fd784af962e64ffdd10ec23ac53827d8e2
Author: Alexey Milovidov <milovidov@yandex-team.ru>
Date:   Tue Feb 16 00:18:00 2016 +0300

    Improving performance of row formats [#METR-2944].

commit cb5932c2b0385604477e69c8262dc31a4bb4b23b
Author: Alexey Milovidov <milovidov@yandex-team.ru>
Date:   Mon Feb 15 00:53:27 2016 +0300

    Fixed error.

commit 42863fd4eddeef594e846c598b92877b6ff86fa6
Author: Alexey Milovidov <milovidov@yandex-team.ru>
Date:   Sun Feb 14 23:13:46 2016 +0300

    Improving performance of row formats [#METR-2944].

commit 71c6fb19a85a79297433ceb486fdb97e551d964f
Author: Alexey Milovidov <milovidov@yandex-team.ru>
Date:   Sun Feb 14 16:58:56 2016 +0300

    Improving performance of row formats [#METR-2944].
 2016-02-16 19:39:39 +03:00
Alexey Milovidov
13c7d0983a dbms: cutting dependency [#METR-2944].. 2016-01-12 00:46:36 +03:00
Alexey Milovidov
7fa1a57165 dbms: fixed excessive memory allocation when splitting single-level block in Aggregator [#METR-17000]. 2015-12-05 10:01:18 +03:00
Alexey Milovidov
eb4034f7f2 dbms: better [#METR-2944]. 2015-11-29 20:06:30 +03:00
Alexey Milovidov
659cf5a940 dbms: improved performance of ColumnArray::filter [#METR-19022]. 2015-11-21 06:19:43 +03:00
Alexey Milovidov
c9a8f19def dbms: fixed error with tuples of consts [#METR-18586]. 2015-10-29 00:21:18 +03:00
Alexey Milovidov
918422ad48 Moved files [#METR-17973]. 2015-10-05 04:35:28 +03:00
Alexey Milovidov
733324645f dbms: aggregation by arrays: preparation [#METR-13168]. 2015-10-04 06:17:36 +03:00
Alexey Milovidov
6f70e8e05c dbms: added comment [#METR-2944]. 2015-07-23 14:11:41 +03:00
Alexey Milovidov
ad2392ee7d dbms: fixed error with StorageBuffer [#METR-15105]. 2015-02-13 23:37:30 +03:00
Alexey Milovidov
3ff8c7ff26 dbms: fixed error [#METR-13087]. 2014-10-07 02:46:18 +04:00
Alexey Milovidov
35cdf28110 dbms: improved performance of filtering [#METR-2944]. 2014-08-17 03:18:37 +04:00
Alexey Milovidov
108a7850a5 dbms: improved performance on short queries [#METR-11571]. 2014-06-26 04:58:14 +04:00
Alexey Milovidov
10fdfb2c9f dbms: tiny performance improvement [#METR-2944]. 2014-05-01 04:17:02 +04:00
Alexey Milovidov
c640065f37 dbms: don't zero-fill columns with numbers [#METR-8582]. 2013-12-08 02:29:40 +00:00
Alexey Milovidov
8fd01c8d7d dbms: better comparison of floating point numbers with NaNs [#METR-9053]. 2013-11-01 20:10:43 +00:00
Alexey Milovidov
56d95e4268 dbms: optimized ORDER BY with LIMIT; rows_before_limit_at_least is temporarily broken [#CONV-2944]. 2013-09-16 05:44:47 +00:00
Alexey Milovidov
f36133e35d dbms: min/max: development [#CONV-8691]. 2013-09-06 20:28:22 +00:00
Alexey Milovidov
facaf9d24a dbms: improved performance of aggregation by FixedString columns [#CONV-2944]. 2013-07-19 20:12:02 +00:00
Michael Kolupaev
796df96cbc clickhouse: Expression refactoring: development [#CONV-7444]. 2013-05-24 10:49:19 +00:00
Alexey Milovidov
d08e7cf5bc dbms: fixed error [#CONV-7486]. 2013-05-03 05:23:14 +00:00
Alexey Milovidov
81418b287e dbms: removed IColumn::clear function [#CONV-7486]. 2013-05-03 03:23:41 +00:00
Alexey Milovidov
3693481bb7 dbms: development [#CONV-2944]. 2013-05-03 02:25:50 +00:00
Alexey Milovidov
b73bbbd7a7 dbms, sqxxl: fixed error [#CONV-7289]. 2013-04-13 00:56:07 +00:00
Alexey Milovidov
7b790fb2a8 dbms: Aggregator: improvement [#CONV-2944]. 2013-02-16 20:15:45 +00:00
Alexey Milovidov
0735bb7d60 dbms: improved performance of queries with large aggregation result [#CONV-2944]. 2013-02-03 18:39:09 +00:00
Alexey Milovidov
70385e1229 Reverted experimental modification [#CONV-2944]. 2013-01-21 06:43:38 +00:00
Alexey Milovidov
39abfc625a dbms: improved performance [#CONV-2944]. 2013-01-21 06:10:30 +00:00
Alexey Milovidov
865130d3b6 dbms: improved performance (less copies of fields) [#CONV-2944]. 2013-01-07 06:47:15 +00:00
Alexey Milovidov
c684b7c337 dbms: probably improved performance of merging [#CONV-2944]. 2012-12-16 00:52:06 +00:00
Alexey Milovidov
b312f42808 dbms: reverted previous modification [#CONV-2944]. 2012-12-16 00:23:41 +00:00
Alexey Milovidov
62a8ecc749 dbms: probably improved performance of inserting, merging and sorting [#CONV-2944]. 2012-12-15 23:10:14 +00:00
Alexey Milovidov
2eee93e1d5 dbms: improved performance of aggregation by many fields; fixed error in function concat [#CONV-2944]. 2012-10-07 06:30:10 +00:00
Alexey Milovidov
5501a05fc6 dbms: development [#CONV-2944]. 2012-09-17 04:31:25 +00:00
Alexey Milovidov
44aa02f806 dbms: development [#CONV-2944]. 2012-08-27 05:13:14 +00:00