c45111d9f6
stats: use more compact structure for histograms ( #5539 )
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* stats: use more compact structure for histograms
* address comments
* address comments
* refine code
* address comment
2018-01-05 20:43:01 +08:00
fa62e9fd01
*: merge ranger.IndexRange and ranger.ColumnRange. ( #5485 )
2017-12-26 16:08:36 +08:00
6a306e4f27
executor: support Chunk for AnalyzeExec ( #5452 )
2017-12-21 11:17:20 +08:00
f1e89cde19
*: use lower-case of github.com/sirupsen/logrus ( #5400 )
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*: rename github.com/Sirupsen/logrus to github.com/sirupsen/logrus
* vendor: update pd
* vendor: update github.com/pingcap/tipb/go-mysqlx
2017-12-14 16:25:58 +08:00
ee0d3f37a2
types, ranger: move Range to package ranger. ( #5231 )
2017-11-27 18:17:29 +08:00
fb610e6429
*: change executor Next() interface to Next(goctx.Context) ( #5223 )
2017-11-26 21:17:33 -06:00
02f6bb27c7
*: remove goCtx from session struct ( #5174 )
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1. go context should not be stored
2. change Executor interface to Open(goctx.Context)
3. many other changes forced by this refactor
2017-11-22 02:17:38 -06:00
f828016e9f
*: move sessionctx/domainctx.go to domain package ( #5168 )
2017-11-22 13:41:58 +08:00
4a75a103e4
executor: some clean up. ( #5156 )
2017-11-20 15:41:12 +08:00
cd5c665c8c
executor: use baseExecutor for all Executors ( #5087 )
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Makes it easy to add new method on Executor interface.
2017-11-13 21:06:31 +08:00
30a080db5c
*: build and use count-min sketch ( #5042 )
2017-11-08 22:34:01 +08:00
62433663e5
util/types: change types path ( #5007 )
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* util/types: change types path
2017-11-04 10:37:14 -05:00
0616a2fd15
executor, distsql: remove useless code. ( #4991 )
2017-11-02 19:40:59 +08:00
d4adb77e4a
executor: set default value for analyze push down ( #4610 )
2017-09-22 06:28:06 -05:00
31f7b9c3b6
*: implement analyze columns push down ( #4522 )
2017-09-18 14:21:10 +08:00
a7dc21c1e8
*: implement analyze index push down ( #4489 )
2017-09-14 10:34:12 +08:00
88e1666ac6
*: change the log package to logrus ( #4452 )
2017-09-08 00:45:07 -05:00
0e438de9ff
*: move sample collector from executor to stats ( #4468 )
2017-09-08 12:21:10 +08:00
e7e40193f9
distsql,store/tikv: fix analyze table OOM ( #4399 )
2017-09-05 20:56:44 +08:00
21a417ad65
executor: make auto analyze more conservative ( #4284 )
2017-08-24 20:25:50 +08:00
7c273c0f29
*: implement auto analyze ( #4141 )
2017-08-18 18:42:28 +08:00
c7c248eb91
executor: change struct row to []types.Datum ( #4072 )
2017-08-09 18:37:57 +08:00
520785b149
*: fix possible race in stats update ( #3987 )
2017-08-03 20:54:15 +08:00
dff73cc6e4
*: Modify the Makefile for go vet ( #3900 )
2017-07-30 23:02:52 -05:00
e0e77d3bac
*: reduce analyze table read when table contains PK ( #3783 )
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* *: reduce analyze table read when table contains PK
* fix ci
* *: address comment
* fix ci
* statistics：make comment more accurate
2017-07-18 05:07:17 -05:00
d0358ceb1c
executor, statistics: remove useless code and rename file name. ( #3564 )
2017-06-29 14:52:19 +08:00
7ae996c411
Set stats lease. ( #3408 )
2017-06-07 18:19:52 +08:00
e1debd4505
executor: analyze executor construct new distsql exec. ( #3410 )
2017-06-07 11:10:25 +08:00
a81726a42f
executor, statistics: analyze with null count. ( #3336 )
2017-05-26 16:44:09 +08:00
ad52a2462c
executor: add open inteferce for Executor. ( #3221 )
2017-05-09 21:13:22 +08:00
c237781cad
plan, executor: make Analyze a Plan ( #3130 )
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* executor: remove indexExec's depedency on indexPlan
* plan, executor: make Analyze a Plan
* address comment
* address comment
* fix gofmt
2017-04-26 10:36:44 +08:00
0316046e33
executor: fix race. ( #3096 )
2017-04-20 16:39:22 +08:00
0f2afbf44b
statistics: prepare for analyze part of a table ( #3062 )
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We need to make somthing like 'analyze index...' work, this is only the first step.
2017-04-20 14:05:51 +08:00
10e005f1e6
statistics: every histogram use its own version to update. ( #3059 )
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after we support delta updae in #3053 , we shouldn't load the whole histogram when we find the table version updated. Every histogram has it's own version.
2017-04-17 21:13:18 +08:00
8a87d775b8
statistics: remove rlock using copy on write. ( #3029 )
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every time we update stats cache, we copy the whole map. By this way we can avoid rlock.
2017-04-12 10:22:22 +08:00
4ce98317ce
*: put the stats map to stats handle to make test more easier. ( #3014 )
2017-04-10 17:01:00 +08:00
e3a0dc68ce
*: use column id to get stats instead of column offset ( #3019 )
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Now we assume that the order of columns in stats matches the column offsets. It will return wrong stats sometimes.
If we analyze when a table is (c1, c2) and then drop c1, the c2's offset will become 0. But in stats the position of 0 is c1. I have added this case to test.
2017-04-10 16:03:20 +08:00
16cefef717
executor, statistics: use FM sketch to estimate NDV ( #2966 )
2017-04-01 15:03:54 +08:00
ee7df059e3
statistics: refactor package. ( #2913 )
2017-03-29 11:32:40 +08:00
60bcd987d5
plan/statistics: concurrent build columns ( #2713 )
2017-03-22 22:16:45 +08:00
66085c3f12
*: add system table mysql.stats_meta ( #2766 )
2017-03-16 14:46:28 +08:00
4d9b70f0a6
plan, executor: give special treat for index columns when analyze table ( #2436 )
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* plan/statistics: statistics support add index info
2017-01-26 11:24:53 +08:00
