0bec639074
planner: correct ExpectedCnt for children plans of join ( #9497 )
2019-03-11 15:08:02 +08:00
85c4553c4e
planner: chose outer table based on cost when both tables are specified in TIDB_INLJ ( #9579 )
2019-03-08 13:25:44 +08:00
0267a7fbdf
ddl: validate fsp for datetime/timestamp if they are used as defaultvalue of datetime/timestamp columns ( #9327 )
2019-03-04 11:19:11 +08:00
5a283a98dd
plan/executor: make semi joins null and empty aware ( #9051 )
2019-02-25 15:42:38 +08:00
f105b710ca
planner: remove correlated column sort items ( #9435 )
2019-02-25 14:48:44 +08:00
38a453d29c
expression: should not pass nil pointer to HashCode() function ( #9324 )
2019-02-21 21:18:03 +08:00
7c0a9a7c57
add integration tests for access path selection ( #9212 )
2019-02-18 19:08:24 +08:00
c468f02bb0
planner: remove constant sort items after substitution ( #9333 )
2019-02-18 10:57:35 +08:00
18ff4f953e
planner/core: refine explain for window function ( #9270 )
2019-02-13 15:23:00 +08:00
9bdba3a5d1
plan: handle DNF expressions in Selectivity ( #9282 )
2019-02-13 10:53:12 +08:00
e1667966ac
planner: fix assertion failure on LogicalJoin.EqualConditions ( #9066 )
2019-02-11 11:45:15 +08:00
776c90fa79
planner: check null and empty for != any(subq) and = all(subq) ( #9106 )
2019-01-21 16:17:48 +08:00
3c98f69266
*: support select partition for partition table ( #8990 )
2019-01-14 20:55:52 +08:00
431c884721
cmd/explaintest: tiny change to make it stable ( #8740 )
2018-12-19 10:40:15 +08:00
6a99fa25d7
executor: fix union dual table order by but not sort ( #8251 )
2018-11-13 15:27:18 +08:00
19c01f40e0
planner: fix error caused by different length between inner and outer OrderByItems ( #8273 )
2018-11-13 11:17:32 +08:00
cd5ffb3b32
planner: support join elimination rule ( #8021 )
2018-11-09 21:31:29 +08:00
60d05bd759
planner: eliminate ifnull in expression rewriting process ( #7996 )
2018-11-02 12:50:27 +08:00
696ef7bae2
plan: convert in subquery to agg and inner join ( #7531 )
2018-10-30 19:19:32 +08:00
a4cff40a18
support _tidb_rowid for table scan range ( #8047 )
2018-10-25 20:35:45 +08:00
19f56480d5
explaintest: add explain test for partition pruning ( #7505 )
2018-10-18 18:55:22 +08:00
6e525f9e62
planner: eliminate if null on non null column ( #7924 )
2018-10-17 22:20:32 +08:00
d60a1a227b
plan: build anti semi join for NOT EXISTS ( #7842 )
2018-10-09 16:57:15 +08:00
f33e04f486
expression: make sysdate unfoldable ( #7838 )
2018-10-08 16:47:45 +08:00
177c155161
plan: exclude IsNull from constant propagation ( #7835 )
2018-10-08 14:47:13 +08:00
869e20138a
plan: refine the handle check to use point get plan for prepare statement ( #7732 )
2018-09-25 11:32:12 +08:00
7b4686d8c2
expression, plan: aggressive constant fold for null parameter expression to simplify outer join ( #7696 )
2018-09-23 19:46:52 +08:00
b30dbd06ac
plan: support limit/group-by/order-by clauses in point get ( #7720 )
2018-09-17 21:18:44 +08:00
9f25032666
plan: fix predicate push down for UnionScan ( #7695 )
2018-09-17 14:44:53 +08:00
7f6babb2b4
plan: fix mistaken conversion from outer join to inner join ( #7689 )
...
exclude upper level join conditions from predicates when simplifying
embedded outer join
2018-09-17 13:39:15 +08:00
d7d13091da
ranger: merge multiple EQ or In expressions if possible ( #7577 )
...
Convert empty range scan to TableDual after expression merge.
2018-09-10 17:46:37 +08:00
e907bfc3a7
plan: fix a bug in index join ( #7150 )
2018-07-30 16:54:11 +08:00
ec8fb0d38c
*: refine IntColumn <cmp> NonIntConstant ( #7108 )
2018-07-26 09:40:47 +08:00
372a6fc921
plan: refine explain result format ( #7011 )
2018-07-09 13:55:36 +08:00
6a931e55dc
plan: remove other accessPaths if one is unique key and full matched. ( #6925 )
2018-06-29 14:32:26 +08:00
c5524cb238
plan, executor: use CorrelatedColumn to calculate range. ( #6779 )
2018-06-28 16:23:05 +08:00
db4888a697
plan, parser: fix the wrong result of the UNION statement ( #6752 )
...
tidb diff result with mysql when mix use union and union-all fix #6731
- rename `selectStmt.UnionDistinct` to `selectStmt.IsAfterUnionDistinct`
- add explain test
- remove useless `unionStmt.Distinct` and `selectList.Distinct`
- refactor use golang slice, remove dup code
- return WrongNumColumnInSelect error and add test case
2018-06-07 17:08:26 +08:00
66c41128ca
expression: improve constant folding of UDF if & ifnull ( #6677 )
2018-06-07 11:38:57 +08:00
33b2a7abbf
plan: fix row count estimation for limit ( #6679 )
2018-05-29 20:17:14 +08:00
0b1b523a81
*:move explain_test to tidb repository ( #6555 )
2018-05-17 23:55:15 +08:00
