Commit Graph

39 Commits

Author SHA1 Message Date
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
4309ccd0d6 dbms: addition to prev. revision [#METR-13168]. 2015-10-04 06:20:03 +03:00
Alexey Milovidov
733324645f dbms: aggregation by arrays: preparation [#METR-13168]. 2015-10-04 06:17:36 +03:00
Alexey Milovidov
ad71fa8155 dbms: fixed error [#METR-15371]. 2015-03-10 23:16:13 +03:00
Alexey Milovidov
bc454aec71 dbms: added override to all columns [#METR-2944]. 2014-11-01 01:15:17 +03:00
Alexey Milovidov
0019c0ef57 dbms: fixed error [#METR-12412]. 2014-08-20 08:57:03 +04:00
Alexey Milovidov
f1dba5e341 dbms: improved performance of function regionToName [#METR-11434]. 2014-06-04 05:00:09 +04:00
Alexey Milovidov
0d2ac52f26 dbms: fixed segfault when ORDER BY one string or fixed string DESC [#METR-11277]. 2014-05-23 06:18:01 +04:00
Alexey Milovidov
d8b642aa6f dbms: tiny improvement [#METR-2944]. 2014-05-23 05:32:32 +04:00
Alexey Milovidov
5d7fb8ecce dbms: Fixed error with uninitialized data in FixedString columns [#METR-9621]. 2013-12-30 17:25:50 +00:00
Alexey Milovidov
c640065f37 dbms: don't zero-fill columns with numbers [#METR-8582]. 2013-12-08 02:29:40 +00:00
Michael Kolupaev
d2010d7876 ClickHouse: fixed FixedString. [#METR-9372] 2013-12-03 10:01:04 +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
Alexey Milovidov
28c9579a5f Separated ColumnString from ColumnArray and ColumnFixedString from ColumnFixedArray; removed ColumnFixedArray [#CONV-2944]. 2013-05-05 15:25:25 +00:00
Alexey Milovidov
d5e9b78920 dbms: addition to prev. revision [#CONV-7486]. 2013-05-03 15:10:56 +00:00
Alexey Milovidov
d08e7cf5bc dbms: fixed error [#CONV-7486]. 2013-05-03 05:23:14 +00:00
Alexey Milovidov
7b790fb2a8 dbms: Aggregator: improvement [#CONV-2944]. 2013-02-16 20:15:45 +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
f5d25057bd dbms: improved performance of strings [#CONV-2944]. 2013-01-07 05:20:13 +00:00
Alexey Milovidov
7b3f533ecd Using own Field class instead of boost::variant (experimental) [#CONV-2944]. 2013-01-05 20:03:19 +00:00
Alexey Milovidov
c684b7c337 dbms: probably improved performance of merging [#CONV-2944]. 2012-12-16 00:52:06 +00:00
Alexey Milovidov
bd93266991 dbms: better diagnostics [#CONV-2944]. 2012-11-25 21:16:37 +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
a2edf17da6 dbms: fixed error (FixedString overflow) [#CONV-2944]. 2012-09-24 06:43:50 +00:00
Alexey Milovidov
44aa02f806 dbms: development [#CONV-2944]. 2012-08-27 05:13:14 +00:00
Alexey Milovidov
1df4bf414c dbms: development [#CONV-2944]. 2011-09-26 11:05:38 +00:00
Alexey Milovidov
971c98f03a dbms: development [#CONV-2944]. 2011-09-04 00:22:19 +00:00
Alexey Milovidov
b67b8d8b54 dbms: development [#CONV-2944]. 2011-08-28 00:31:30 +00:00
Alexey Milovidov
9f5cc680a4 dbms: development [#CONV-2504]. 2011-08-09 19:19:00 +00:00
Alexey Milovidov
e1dca98ecb dbms: development. 2011-08-07 02:08:22 +00:00