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51 Commits

Author SHA1 Message Date
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
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
af8f9289cc dbms: lowered memory usage for huge ORDER BY with LIMIT [#METR-2944]. 2014-12-15 10:35:40 +03:00
Alexey Milovidov
bc454aec71 dbms: added override to all columns [#METR-2944]. 2014-11-01 01:15:17 +03:00
Andrey Mironov
771dada9c0 +PODArray::resize_assume_reserved 2014-08-28 15:59:41 +04:00
Andrey Mironov
7039a8b883 review corrections, exception safety. 2014-08-28 11:49:27 +04:00
Andrey Mironov
5d12a38bbb ColumnString::filter: manual vectorization 2014-08-26 18:59:22 +04:00
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
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
Vyacheslav Alipov
7c9a0f8ac1 renamed methods with collator in ColumnString, removed catching exception [#CONV-7651] 2013-05-30 14:28:27 +00:00
Alexey Milovidov
85d06561c6 dbms: fixed error with collations [#CONV-7651]. 2013-05-29 18:58:01 +00:00
Vyacheslav Alipov
f1c161842b added collation [#CONV-7651] 2013-05-28 16:56:05 +00:00
Alexey Milovidov
a283ee9ad1 dbms: fixed error in prev. revision [#CONV-2944]. 2013-05-05 16:18:25 +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
b73bbbd7a7 dbms, sqxxl: fixed error [#CONV-7289]. 2013-04-13 00:56:07 +00:00
Michael Kolupaev
24ffa945bc clickhouse: added function IPv4StringToNum [#CONV-6788]. 2013-03-05 10:29:26 +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
d1f92c5508 dbms: modified comment [#CONV-2944]. 2013-02-03 18:05:26 +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
bf32223096 dbms: improved performance of strings [#CONV-2944]. 2013-01-07 05:33:36 +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
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
c4c2ca38c6 dbms: improved performance (1.5x) of filtering and sorting strings [#CONV-2944]. 2012-10-07 00:23:18 +00:00
Alexey Milovidov
8068c5df89 dbms: fixed error [#CONV-2944]. 2012-09-19 18:45:01 +00:00
Alexey Milovidov
44aa02f806 dbms: development [#CONV-2944]. 2012-08-27 05:13:14 +00:00
Alexey Milovidov
5b9cd8cac6 dbms: development [#CONV-2944]. 2012-08-26 04:40:29 +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
78c982e205 dbms: development. 2010-05-24 16:52:58 +00:00
Alexey Milovidov
ec705eddef dbms: development. 2010-05-21 19:52:50 +00:00
Alexey Milovidov
b2db328d0a dbms: development. 2010-05-20 19:29:04 +00:00
Alexey Milovidov
6609ba4c1b dbms: development. 2010-05-13 16:13:38 +00:00