f033927481
sessionctx/variable,ddl: change @@tidb_enable_table_partition default value and update the semantic ( #16497 )
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Before:
auto means enable for implemented feature and disable for others
on means always enable, no matter the feature is implemented or not
After:
auto and on both means enable for implemented feature and disable for others
2020-04-20 16:46:25 +08:00
ff7413fedb
planner, sessionctx : Add 'last_plan_from_cache' to help know whether sql's plan is from plan cache ( #16321 )
2020-04-17 17:15:21 +08:00
e90aac2710
executor: add config EnableCollectExecutionInfo ( #15493 )
2020-04-13 20:45:25 +08:00
af0a49cb7a
[store/tikv] support batch coprocessor for TiFlash ( #16030 )
2020-04-09 13:01:09 +08:00
4eb9ca3d3f
planner: push aggregation functions with distinct to cop ( #15500 )
2020-04-01 20:49:14 +08:00
514b180928
executor: turn off dynamic config by default and add some removed variables back ( #15833 )
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Co-authored-by: pingcap-github-bot <sre-bot@pingcap.com >
2020-03-30 16:07:47 +08:00
4a7d477399
session: delete global scope for isolation read ( #15625 )
2020-03-25 16:18:39 +08:00
6905549bf6
*: support more system variables in statement summary ( #15508 )
2020-03-25 16:07:10 +08:00
bbac2b2fe4
executor: Improve the performance of aggFuncSum by using sliding window ( #14887 )
2020-03-23 13:29:44 +08:00
df6f378267
stmtsummary: add a switch to decide whether capture internal q… ( #15461 )
2020-03-20 17:39:11 +08:00
9f0736ee8b
errno: move the error code from the parser/mysql to tidb/errno ( #15277 )
2020-03-11 15:40:21 +08:00
5d4eb4c806
config: support to dynamically update some config items read from PD ( #14750 )
2020-02-17 19:30:27 +08:00
465af00b46
*: use new registrable terror ( #14606 )
2020-02-06 16:40:26 +08:00
74bc00dfa9
Improve the performance of WindowExec by using multi-thread hash grouping ( #14238 )
2020-01-16 21:04:16 +08:00
c48d5635f9
*: replace conf item pprof_sql_cpu with srv var tidb_pprof_sql_cpu ( #14385 )
2020-01-09 13:23:09 +08:00
870d4b19c8
*: support auto_increment_increment & auto_increment_offset. ( #14301 )
2020-01-08 10:18:39 +08:00
0bab73adf5
*: use new row-format in tidb ( #12634 )
2020-01-02 22:34:39 +08:00
933715f4a2
infoschema: add metric database/table to query cluster metric via SQL. ( #13757 )
2019-12-20 16:13:28 +08:00
c39317e890
executor: support turn on/off slow-log by variables ( #14016 )
2019-12-18 10:48:46 +08:00
881038ee1b
session: support 'GLOBAL SCOPE' for tidb_enable_table_partition ( #14062 )
2019-12-17 10:10:25 +08:00
f6fc7847b1
bindinfo: unify session variables of spm ( #14005 )
2019-12-12 15:09:28 +08:00
5da10ffecc
*: refine some error code ( #14002 )
2019-12-12 11:09:58 +08:00
d439a57566
infoschema, util: add table events_statements_summary_by_digest_history ( #13813 )
2019-12-09 16:11:49 +08:00
5b6422df58
*: support read remote TiDB memory table of cluster ( #13065 )
2019-12-04 13:05:36 +08:00
5a589c9994
planner: consider disk cost in hashJoin ( #13246 )
2019-12-03 13:43:19 +08:00
18fbe2d483
infoschema, util: refresh statement summary table periodically ( #13680 )
2019-11-28 15:39:22 +08:00
518692c14c
bindinfo: support evolve plan ( #13465 )
2019-11-22 17:09:37 +08:00
b7ab604b48
Changed version comment to include "TiDB Server" ( #13604 )
2019-11-20 10:05:14 +08:00
4283263b13
store : add store limit to restrain bad store from occupying too much token limit. ( #12779 )
2019-11-13 18:49:24 +08:00
58733475da
*: support capture evolve plan tasks ( #13199 )
2019-11-13 16:22:48 +08:00
2dfaf55410
sysvars: error code package for sysvar.go ( #13366 )
2019-11-12 13:01:29 +08:00
538077ff75
*: rename Arrow to Chunk ( #13060 )
2019-11-06 14:51:10 +08:00
5fd8b4d251
executor: support innodb_lock_wait_timeout for pessimistic transaction ( #13103 )
2019-11-05 17:26:40 +08:00
000c1ba5db
planner, session: add isolation read with engine type ( #12997 )
2019-11-01 15:47:12 +08:00
6fd74f3e4c
planner: support cost model for tiflash table scan ( #12868 )
2019-10-29 16:05:51 +08:00
b8cd65714f
*: record and print the plan in slow log. ( #12179 )
2019-10-17 22:13:19 +08:00
740b7769b0
*: support automatically create sql baselines ( #12434 )
2019-10-17 14:16:48 +08:00
20823fbe18
*: add a system variable to control the usage of baselines ( #12624 )
2019-10-14 21:09:03 +08:00
3e8129d59e
executor,sessionctx: add correctness for system variables ( #12311 )
2019-10-08 16:20:52 +08:00
1a9fcb9c20
*: replace cost model factor constants with system variable ( #12367 )
2019-09-30 14:24:07 +08:00
99a5432dce
*: encode the returned data using the Chunk format in mocktikv ( #12023 )
2019-09-28 20:02:26 +08:00
ba9d1ca960
*: adjust delta schema count and add metrics ( #11625 )
2019-09-27 20:33:18 +08:00
9064c49611
session, executor: support setting tidb_enable_stmt_summary in session scope ( #12217 )
2019-09-18 15:19:47 +08:00
0f55274760
infoschema, session: support for events_statements_summary_by_digest ( #12017 )
2019-09-12 19:53:16 +08:00
bbd131b272
ddl: disallow dropping auto_increment column attribute ( #12107 )
2019-09-10 21:42:52 +08:00
0fbd21c085
*: replace pessimistic default config option with global variable ( #12041 )
2019-09-05 18:32:58 +08:00
c07fcc4a34
executor: make the projection executor support vectorized expression evaluation ( #11917 )
2019-08-30 13:41:05 +08:00
523b93651d
Add follower read support to TiDB ( #11347 )
2019-08-16 13:26:17 +08:00
89baed8e17
ddl: scatter the regions of table when creating them ( #10980 )
2019-07-10 11:09:14 +08:00
a737d26e4f
*: add tidb_enable_noop_functions to default disable get_lock()/release_lock() ( #10987 )
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* issue#4100 add new variable to default disable usage of get_lock and release_lock functions
2019-07-08 13:47:36 +08:00
