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
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
177c155161
plan: exclude IsNull from constant propagation ( #7835 )
2018-10-08 14:47:13 +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
9f25032666
plan: fix predicate push down for UnionScan ( #7695 )
2018-09-17 14:44:53 +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
ec8fb0d38c
*: refine IntColumn <cmp> NonIntConstant ( #7108 )
2018-07-26 09:40:47 +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
