f388b094df
planner: add optimizer hint TOPN_TO_COP() ( #19545 )
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* planner: add TopN_To_Cop hint.
* go fmt.
* add a method canPushToCop() to check if it is valid to push the TopN down.
* add unit test case for warning.
* gofmt.
Co-authored-by: Yuanjia Zhang <zhangyuanjia@pingcap.com >
Co-authored-by: ti-srebot <66930949+ti-srebot@users.noreply.github.com >
2020-09-10 17:18:20 +08:00
1cab3d5947
*: fix bug of same type plans with different plan digest ( #19519 )
2020-09-01 21:55:20 +08:00
b78f4896fe
statistics, util/ranger: improve selectivity calculation for DNF filters ( #18741 )
2020-08-27 15:40:12 +08:00
e52cb3714e
planner: Do not pushdown unsupported function to tiflash in TopN operator ( #19363 )
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Co-authored-by: ti-srebot <66930949+ti-srebot@users.noreply.github.com >
2020-08-25 17:20:18 +08:00
84e07a2a59
planner: propagate NDV of column groups across plan nodes ( #17854 )
2020-08-12 16:39:11 +08:00
3b35c89958
util/ranger: fix explain does not display range[NULL, NULL] ( #19028 ) ( #19068 )
2020-08-11 17:23:01 +08:00
f172a1e08a
planner: make some access paths check fit the clustered index ( #18998 )
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* planner: make some access paths check fit the clustered index
* add test
* add test for outer join elimination
* make test stable
* fix test
Co-authored-by: ti-srebot <66930949+ti-srebot@users.noreply.github.com >
2020-08-10 15:33:17 +08:00
3df573d2fc
planner,executor: use new table partition implementation and fix CI ( #18981 )
2020-08-06 17:50:40 +08:00
e49b4c0322
planner: support out join in broadcast join ( #18988 )
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Co-authored-by: ti-srebot <66930949+ti-srebot@users.noreply.github.com >
Co-authored-by: Zhuomin(Charming) Liu <lzmhhh123@gmail.com >
2020-08-06 13:24:17 +08:00
aeee1524e4
planner: fix the inappropriate heuristic rule to estimate the EQ selectivity when out of range ( #18543 )
2020-08-05 14:11:06 +08:00
4e829aaee7
planner,executor: fix index merge for partition table ( #18940 )
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Co-authored-by: ti-srebot <66930949+ti-srebot@users.noreply.github.com >
2020-08-04 20:38:17 +08:00
950ca5062c
plan: optimize the performance of decodePlan for big union query ( #18891 )
2020-08-03 14:17:36 +08:00
5dd7cd8553
planner/core: implement Explain for the new partition table ( #18834 )
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Co-authored-by: lysu <sulifx@gmail.com >
2020-07-30 15:37:02 +08:00
56fd348d20
executor: support index merge on cluster index ( #18699 )
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* executor: support index merge on cluster index
* fix fmt
* fix
* fix
* fix
* fix
* address comments
* address comments
* address comments
* fix
* fix
* fix
Co-authored-by: ti-srebot <66930949+ti-srebot@users.noreply.github.com >
2020-07-27 18:09:32 +08:00
f3554241bb
planner, executor: support except and intersect set operator ( #18459 )
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Co-authored-by: ti-srebot <66930949+ti-srebot@users.noreply.github.com >
2020-07-27 17:56:07 +08:00
29178dfa8d
planner, executor: support broadcast join for tiflash engine. ( #17232 )
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* support batch cop for tiflash
* support batch cop
* support join push down to tiflash
* refine
* change pb
* push join
* fix
* add hint
* refine hint
* add ranges
* fix
* fix
* fix push down
* fix index
* enable distsql for join
* add a session var to disable/enable broadcast join
* fix bug
* fix bug
* tiny fix
* enable cast decimal pushdown to tiflash
* fix
* fix bc join bug
* make broadcast plan stable
* refine code
* fix bug
* basic support for multi table broadcast join
* fix bug
* basic cbo for broadcast join
* improve
* fix bug
* remote useless code
* add tests
* pass unit tests
* refine code
* support execute summary info for broadcast join
* fix bug in explain for broadcast join
* format code
* remove un-needed code
* fix make dev
* address comments
* Hanfei/join merge (#7 )
* enable exec details for batch cop
* format code
* fix test
* change tidb_opt_broadcast_join to global vars
* Ban cartesian join to be pushed down to TiFlash (#8 )
* merge master (#10 )
* merge master
* fix bug
* fix bug
* fix ut
* check session var conflict
* Add perfer local hint for broadcast join (#12 )
* update
* remove useless code
* remove useless code
* update parser
* add test for prefer local join
* use bcj_local
* update go.mod
* refine planner
* refine comments
* fix make dev
* fix make dev
* update parser
* address comments
* fix make dev
* disable broadcast join when new collation is enabled
* Update planner/core/exhaust_physical_plans.go
Co-authored-by: Zhuomin(Charming) Liu <lzmhhh123@gmail.com >
* address comments
* fix
* address comments
* fix tests
* address comments
Co-authored-by: xufei <xufeixw@mail.ustc.edu.cn >
Co-authored-by: xufei <xufei@pingcap.com >
Co-authored-by: 虎 <ichneumon.hu@foxmail.com >
Co-authored-by: Zhuomin(Charming) Liu <lzmhhh123@gmail.com >
2020-07-27 12:41:36 +08:00
ace80c7411
planner: apply min-max eliminator on common handle columns ( #18589 )
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* planner: apply min-max eliminator on common handle columns
* reuse AccessPath.IsTablePath()
* planner: apply min-max eliminator on common handle columns
* address comments
* address comment
Co-authored-by: ti-srebot <66930949+ti-srebot@users.noreply.github.com >
2020-07-17 18:01:47 +08:00
79143d6fa1
planner: support keep order for clustered index ( #18590 )
2020-07-16 12:01:06 +08:00
af129d2116
planner: reset plan ID count when using nth_plan hint ( #18409 )
2020-07-10 09:46:34 +08:00
658132fcf3
planner: refactor handle columns ( #18391 )
2020-07-07 12:26:14 +08:00
daad2699dd
*: support clustered index for index join ( #18204 )
2020-07-01 16:15:51 +08:00
dce0e45bdf
planner, add hint nth_plan(x) to help user force a plan ( #17850 )
2020-07-01 15:34:22 +08:00
5250f7f53f
*: support clustered index in double read ( #18127 )
2020-06-23 15:33:38 +08:00
3e5db05ac0
planner: support specify table partition in optimize hint ( #17638 )
...
Co-authored-by: HuaiyuXu <391585975@qq.com >
2020-06-22 11:21:23 +08:00
978370f7cb
executor: add new agg function APPROX_COUNT_DISTINCT ( #17175 )
2020-06-18 22:00:14 +08:00
463d085342
planner: check clustered index don't need double read ( #18054 )
2020-06-17 14:37:21 +08:00
7f1cd1a60d
planner: support build clustered index range for table scan ( #18018 )
2020-06-16 11:49:01 +08:00
06361c2d98
expression: fix type infer error for count ( #17871 )
2020-06-11 10:22:54 +08:00
8189c4af83
planner: isolation read do not filter system tables ( #17556 )
2020-06-05 17:12:27 +08:00
94a722e2df
statistics: improve estimation for index equal condition ( #17366 )
2020-06-03 08:32:17 +08:00
777907bcee
planner: push agg below partition union all by default ( #17262 )
2020-05-28 18:11:13 +08:00
38298c2e3e
planner: fix wrong index merge join plan for join key is not the prefix of index ( #16894 )
2020-05-22 17:40:10 +08:00
134e691d6f
planner: check required order property for enforced stream aggregation ( #17338 )
2020-05-21 23:47:55 +08:00
b248783dfe
planner: fix wrong agg function when agg push down union ( #17022 )
2020-05-20 21:50:15 +08:00
3afb631ef6
planner/core: support range partition pruning for 'in' expression ( #17210 )
2020-05-20 19:27:14 +08:00
e8779717d9
planner, expression: Remove the default asc order in explain result ( #17074 )
2020-05-14 17:38:19 +08:00
7ebcc20398
executor: support GROUP_CONCAT(ORDER BY) ( #16591 )
2020-05-06 18:41:22 +08:00
76b910edd1
planner: hints for index merge should check the DB name for a table ( #16519 )
2020-04-29 15:46:56 +08:00
902231076d
planner: move flagPrunColumnsAgain so that UPDATE statement ca… ( #16785 )
2020-04-24 18:58:51 +08:00
b6fcc15744
planner: enforce the required property when hint cannot satisf… ( #15650 )
2020-04-22 14:26:20 +08:00
b8494e7a11
expression: support disable expression pushdown based on store… ( #16389 )
2020-04-17 14:53:25 +08:00
637d3b8a44
planner: only push count distinct when child is DataSouce ( #16371 )
2020-04-16 13:04:33 +08:00
8f000fc353
planner: push avg & distinct functions across union ( #16344 )
2020-04-15 18:07:37 +08:00
d26875db7e
expression: fix error PushDownNot for contiguous NOT ( #16108 )
2020-04-15 17:52:14 +08:00
c66320c464
planner: fix panic when two table scan as the build side for i… ( #16001 )
2020-04-14 18:22:43 +08:00
49ee75a0a5
planner, executor: enable inline projection for merge join ( #15463 )
2020-04-09 15:58:32 +08:00
a69e7da69b
util/hint: resolve semantically equivalent bindings into a single one ( #15895 )
2020-04-03 17:27:57 +08:00
f572c8efc5
planner: add warning when use_index_merge hint's index names are invalid ( #15960 )
2020-04-03 11:33:38 +08:00
77f970c48c
planner: fix push down distinct when need to inject projection ( #15997 )
2020-04-02 11:43:01 +08:00
4eb9ca3d3f
planner: push aggregation functions with distinct to cop ( #15500 )
2020-04-01 20:49:14 +08:00
