tangwz f388b094df planner: add optimizer hint TOPN_TO_COP() (#19545) ...

* 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

..

cascades

planner: propagate NDV of column groups across plan nodes (#17854)

2020-08-12 16:39:11 +08:00

core

planner: add optimizer hint TOPN_TO_COP() (#19545)

2020-09-10 17:18:20 +08:00

implementation

executor: unify executor concurrency (#16999)

2020-06-22 17:39:32 +08:00

memo

*: Use a function to get the ONE, ZERO and NULL and fix the clone. (#16512)

2020-04-17 19:11:52 +08:00

property

planner: propagate NDV of column groups across plan nodes (#17854)

2020-08-12 16:39:11 +08:00

util

planner, executor: support broadcast join for tiflash engine. (#17232)

2020-07-27 12:41:36 +08:00

optimize.go

*: annotate execution info in runtime/trace (#19407)

2020-08-27 11:23:36 +08:00