16fa15d890
*: support revoke statement ( #2661 )
2017-02-21 22:05:50 +08:00
4dcd7c8d41
*: fix bug about scalar subquery. ( #2674 )
2017-02-18 15:42:26 +08:00
37977865df
*: add max1row info and refine scalar subquery's decorrelation. ( #2646 )
2017-02-17 19:25:00 +08:00
dcc7715ec2
*: support with grant option for grant statement ( #2647 )
2017-02-16 12:58:07 +08:00
4d9b70f0a6
plan, executor: give special treat for index columns when analyze table ( #2436 )
...
* plan/statistics: statistics support add index info
2017-01-26 11:24:53 +08:00
461fd98bb0
*: rename the plan interface. ( #2547 )
2017-01-25 15:10:44 +08:00
96ee4446e3
*: refactor function. ( #2499 )
2017-01-22 18:10:38 +08:00
f145a32063
*: refactor apply plan and executor. ( #2411 )
2017-01-22 11:06:17 +08:00
6ae4b77d7f
plan, executor: clean code ( #2520 )
2017-01-22 10:18:10 +08:00
a28ab3eb73
*: add GetArgs interface ( #2343 )
2016-12-29 19:10:01 +08:00
5f96f67cbc
*: change schema from []*Column to struct ( #2321 )
2016-12-27 14:02:19 +08:00
751a81b77e
*: add physical mem table plan ( #2296 )
2016-12-25 16:13:18 +08:00
64484a4257
*: refactor context.Context ( #2298 )
...
Make transaction life cycle under control, prepare for correctly handle schema out of date error.
The old `GetTxn(forceNew boll)` is replaced by `Txn` and `NewTxn`,
`CommitTxn` and `RollbackTxn` is removed.
2016-12-23 13:02:41 +08:00
0adabe53a1
*: begin a transaction in PrepareTxnCtx, unify in transaction. ( #2290 )
...
Transaction should has the same life cycle as TxnCtx, so create a
new transaction in PrepareTxnCtx if transaction is nil or invalid.
2016-12-21 16:48:19 +08:00
a89fa8a8d3
*: refact insert logic ( #2252 )
2016-12-20 17:38:23 +08:00
c24c90b4d3
tidb, variable: refactor retry, add TransactionContext ( #2256 )
2016-12-16 11:07:59 +08:00
d406c77c1f
Revert "tidb, variable: refactor retry, add TransactionContext" ( #2255 )
2016-12-15 10:42:04 +08:00
ff0ceb1785
tidb, variable: refactor retry, add TransactionContext ( #2254 )
2016-12-15 10:35:57 +08:00
35edefb757
*: rewrite the logic of set. ( #2223 )
2016-12-12 17:54:16 +08:00
379363266e
plan: optimize the filter condition push down logic when do index double read ( #2166 )
...
Origin design will put index conditions into table scan, but it can
be pushed down into index scan.
2016-12-07 17:02:16 +08:00
74a1c9935d
*: add StatementContext argument to functions. ( #2157 )
...
Add StatementContext argument to more functions where it is needed.
2016-12-02 23:28:11 +08:00
e321a72998
executor: fix the error when union_scan's src is mem table. ( #2138 )
2016-11-30 21:27:00 +08:00
5230f5eabd
variable: define StatementContext. ( #2121 )
...
StatementContext is used to hold statement execution mode and state.
As every computation need this, there are many API changes.
2016-11-29 14:25:38 +08:00
73f2ffad90
varsutil: remove dependency on 'types' for 'variable' package ( #2095 )
...
* varsutil: remove dependency on 'types' for 'variable' package
'variable' package will be used in 'types', remove dependency on 'types' by
moving functions to a new 'varsutil' package.
Also extract 'SetExec' from 'SimpleExec'
2016-11-25 13:44:49 +08:00
440abb21f2
plan: set apply's innerplan be the second child of it. ( #2092 )
2016-11-25 11:07:41 +08:00
79a8c3fc8d
plan: add a Cache plan in physical plan ( #2052 )
...
plan: add Cache plan
* format code
* tiny change
* optimize the logic of code
* rename some variable and optimize logic
* move e.cursor++ down
2016-11-23 15:53:44 +08:00
0af8520a78
sessionctx/variable: remove dependency on context package. ( #2064 )
...
Makes using session variable easier and faster.
Prepare for use session variable to handle data truncated error.
2016-11-23 14:39:48 +08:00
af5b0e71fc
infoschema: implement infoschema table. ( #2034 )
...
Creates a information schema specific table that implements table.Table interface.
The rows in this table is generated by `[]*model.DBInfo` on request.
Further reduce memory allocation.
2016-11-21 19:47:41 +08:00
421ceeb8fa
*: make golint happy.
2016-11-15 11:12:24 +08:00
cbf024e8f7
*: clean code. ( #1987 )
2016-11-10 15:38:22 +08:00
e17644716d
refactor show clause. ( #1940 )
2016-11-10 11:14:37 +08:00
88a66a57ea
*: Improve test for push down. ( #1927 )
2016-11-07 11:42:05 +08:00
5d1a069ada
executor: set scanConcurrency varialbe for distsql Executor on building. ( #1943 )
...
Prevent worker goroutines from reading session variable map, Fixes race.
2016-11-04 09:46:00 +08:00
bfc1ca679a
tidb: load and apply common global variables for the session ( #1942 )
...
Fixes a bug some global variables like 'sql_mode' not applied to session.
2016-11-03 22:01:15 +08:00
3bcb4bedd8
executor: let union_scan executor use its own schema. ( #1925 )
2016-11-02 13:26:11 +08:00
76f420595b
*:support aggregate function push cross outer join. ( #1899 )
2016-11-01 17:59:12 +08:00
1550e76e6c
executor: add comments in executor package. ( #1876 )
...
* executor: add comments in executor package.
2016-10-31 10:51:17 +08:00
82971c4779
plan: support aggregation push down. ( #1886 )
2016-10-31 01:17:21 +08:00
9b9c01100e
plan: support topn push down in plan phase. ( #1769 )
2016-10-11 15:17:00 +08:00
471731b04e
plan: consider limit during building physcial plan. ( #1760 )
...
Consider limit in CBO framework.
2016-09-26 21:53:17 +08:00
2456804b25
remove useless code. ( #1745 )
2016-09-20 21:42:57 +08:00
b8994bb139
*: Support stream aggregation. ( #1735 )
...
* *: Support stream aggregation.
2016-09-20 17:14:31 +08:00
ade11fe9f4
*: support history read. ( #1734 )
...
* *: support history read.
This commit only handles the case when scheme does not change.
Use history schema will be supported in the following PR.
2016-09-19 15:37:30 +08:00
5caa0f5e29
decide push down conditions during plan building phase. ( #1731 )
2016-09-18 10:35:52 +08:00
efa2db0b05
*: Rename xapi to distsql ( #1725 )
...
distsql is a more clear name.
2016-09-14 10:20:33 +08:00
4d22f97013
support heap sort in sql layer. ( #1697 )
2016-09-08 12:57:03 +08:00
ed4649e85d
*: Support load data local ( #1634 )
2016-08-30 09:38:37 +08:00
f2d8b3c108
remove New*** from variable name. ( #1644 )
2016-08-29 10:18:45 +08:00
e33587ed47
support explain ( #1632 )
2016-08-26 11:19:23 +08:00
c90d91cba9
*: Support insert ignore ( #1579 )
...
Ignore duplicate key errors for insert ignore stmt, Fix #1570
2016-08-22 14:18:56 +08:00
