5ea64e6e23
expression: change date add function return type ( #28133 )
...
close pingcap/tidb#27573
2021-12-31 19:01:51 +08:00
7f85091696
expression: pushdown substring/char_length to tikv ( #30191 )
...
close pingcap/tidb#31125
2021-12-31 00:07:50 +08:00
df58e6c36c
execution: refine precision of cast as decimal in agg func ( #30805 )
2021-12-23 16:53:47 +08:00
28c3748496
planner: remove some risky cache operations in the plan builder ( #23354 )
2021-03-18 15:35:11 +08:00
9f7ed0f44a
planner: push aggregation operators down to projection by default ( #22090 )
2021-03-17 16:20:56 +08:00
5bafb3203e
planner: show cast type in EXPLAIN in coptask ( #23123 )
2021-03-16 16:16:55 +08:00
04e5137f48
*: use explain format = 'brief' for tests ( #22677 )
2021-02-22 17:50:06 +08:00
c9e85ec701
expression: refine performance of EXTRACT function ( #22701 )
2021-02-19 15:31:27 +08:00
857e3da6eb
planner: join reorder should not change the order of output columns ( #16852 )
2020-12-31 14:51:14 +08:00
d44e123395
planner: prevent agg push down if it is in the outer child of apply ( #21902 )
2020-12-22 16:43:26 +08:00
f687ebd91c
planner: fix correlated aggregates which should be evaluated in outer query ( #21431 )
2020-12-18 14:51:35 +08:00
fd587c3552
session: add a switch for index merge join ( #21830 )
...
Signed-off-by: lzmhhh123 <lzmhhh123@gmail.com >
2020-12-18 11:05:05 +08:00
f0c6fa9c25
expression: fix compatibility of extract day_time unit functions ( #21601 )
...
Signed-off-by: lzmhhh123 <lzmhhh123@gmail.com >
2020-12-11 17:13:21 +08:00
38bbb0dd21
planner: ban (index) merge join heuristically when convert eq cond to other cond ( #21138 )
2020-11-19 17:17:53 +08:00
41786cb976
*: seperate hash keys from join keys in IndexJoin ( #20761 )
2020-11-16 16:24:51 +08:00
a338e35932
expression: fix wrong inferred type for sum and avg ( #20926 )
2020-11-11 14:10:34 +08:00
ff428983e0
planner: estimate cardinality of agg / join by GroupNDV ( #18058 )
2020-10-27 11:09:57 +08:00
b78f4896fe
statistics, util/ranger: improve selectivity calculation for DNF filters ( #18741 )
2020-08-27 15:40:12 +08:00
daad2699dd
*: support clustered index for index join ( #18204 )
2020-07-01 16:15:51 +08:00
e8779717d9
planner, expression: Remove the default asc order in explain result ( #17074 )
2020-05-14 17:38:19 +08:00
4eb9ca3d3f
planner: push aggregation functions with distinct to cop ( #15500 )
2020-04-01 20:49:14 +08:00
21ee980e11
*: Refine Explain's format. ( #15507 )
2020-03-23 17:57:49 +08:00
a999ef6981
expression: support different expr push down for TiKV and TiFlash ( #15174 )
2020-03-11 16:16:03 +08:00
183a9d585a
*: update explain info of outer hash joins ( #15247 )
2020-03-10 20:38:02 +08:00
77dcdc546d
*: Clear the name of some field in explain result. ( #14958 )
2020-03-02 17:43:22 +08:00
6d00e2169b
planner: enable inline projection for hash join ( #14783 )
2020-02-28 16:28:10 +08:00
236352e98f
*: show build and probe side for join and index lookup related operators in explain result ( #14838 )
2020-02-26 17:12:09 +08:00
dbcf5fbcc8
planner: show cast type in EXPLAIN ( #14942 )
2020-02-26 16:36:35 +08:00
3399f4be31
planner: distinguish FullScan and the RangeScan in explain/desc info ( #14696 )
2020-02-24 15:23:06 +08:00
a8415541f7
planner: refine Cardinality to map ( #14845 )
2020-02-21 16:19:11 +08:00
6702d95fc0
planner: prune columns again after predicate push down ( #14683 )
2020-02-12 18:13:18 +08:00
54e3531d0b
planner: TIDB_INLJ hint does not work for smaller left table ( #14023 )
2019-12-17 20:05:48 +08:00
493c07c439
planner: correct row count estimation for inner child of index join ( #13726 )
2019-12-12 17:06:05 +08:00
64da4b583f
planner/cascades: implement PreparePossibleProperties in cascades planner ( #13910 )
2019-12-06 15:52:49 +08:00
e979cff6bb
planner: add column mapping in explain result ( #13640 )
2019-11-27 16:39:19 +08:00
96069cd749
planner: reuse GroupBy Columns when build finalModeAgg ( #13653 )
2019-11-21 13:53:37 +08:00
889ad618cf
planner: projection don't new unnecessary column ( #13406 )
2019-11-20 13:58:38 +08:00
4dcd7d7938
planner: consider build hashtable using the outer side for outer join during plan building ( #12883 )
2019-11-08 17:43:53 +08:00
36f0f37b40
expression, planner: remove some fields from `expression.Colum… ( #12573 )
2019-10-29 15:48:26 +08:00
e1ba309148
executor: make IndexHashJoin support keeping the outer order ( #12349 )
2019-10-17 14:48:24 +08:00
ae811b91c9
planner: fix constant propagation for AntiSemiJoin ( #12728 )
2019-10-17 11:03:48 +08:00
45bc789a0f
planner: stream agg should not be pushed to double read ( #12443 )
...
For the following two reason, we should not push stream agg down to double read
- The aggregate will lost the handle information
- There's no sort operator. The second read is ordered with pk, not by index.
2019-10-12 19:22:04 +08:00
7ffa4500e6
planner: support a hint to read from tiflash in planner ( #12479 )
2019-10-11 16:36:35 +08:00
003a7dfb67
planner: fix bug the inner child can't keep order in index join ( #12614 )
2019-10-11 14:44:33 +08:00
1fe9773726
planner: introduce an individual physical plan for indexNestedLoopHashJoin ( #12139 )
2019-09-24 21:18:45 +08:00
3eaa4d3012
planner: tiny code refine for contructIndexJoin ( #12254 )
2019-09-23 11:58:45 +08:00
e2b1f7eff8
expression: change the String() method of expression.Column ( #12089 )
2019-09-16 14:30:22 +08:00
f2adf1df53
planner: improve row count estimation of IndexJoin's inner scan ( #12085 )
2019-09-11 17:10:46 +08:00
2307338ae7
planner: generate index path as candidate when it is a single scan ( #12022 )
2019-09-09 19:13:41 +08:00
845061351d
planner: support index_lookup_merge_join in physical plan. ( #11338 )
2019-09-04 13:46:05 +08:00
