e215e93948
*: provide a configurable tidb_retry_limit session variable ( #6369 )
2018-05-03 19:52:53 +08:00
5da8ac0957
*: make session variables control TiKV layer. ( #6322 )
...
And add a system variable `tidb_backoff_lock_fast` to change the backoff base time on read lock.
2018-04-20 16:06:34 +08:00
60a9ff5f93
variable: group same kind of variables into structs. ( #6297 )
2018-04-17 19:49:12 +08:00
8777db2d98
session: add session variable tidb_optimizer_selectivity_level. ( #6289 )
2018-04-16 21:48:37 +08:00
88a6a0de38
variable: set default hash join concurrency in NewSessionVars ( #6295 )
2018-04-16 20:15:49 +08:00
9fbf8a6637
stats: dynamically update the average column size ( #6170 )
2018-04-13 16:31:43 +08:00
e2b033d1c0
*: add a tidb system variable tidb_hash_join_concurrency ( #6244 )
2018-04-12 20:28:19 +08:00
dd98c7050e
variable: fix NewSessionVars ( #6272 )
...
Set IndexLookupJoinConcurrency to default value.
If this value is init as 0, index lookup join will hang forever.
2018-04-11 21:44:10 +08:00
582e33a0e4
*: use tidb_index_lookup_join_currency to control the number of IndexLookupJoin inner workers ( #6240 )
2018-04-10 10:05:00 +08:00
13a7f1943c
*: fix data race in plan cache ( #6234 )
2018-04-09 08:24:38 +08:00
6287cfb8c2
*: modify 'session transaction isolation level' to take effect once ( #6175 )
2018-04-04 18:39:44 +08:00
83066fc954
executor: track memory usage for nested loop apply ( #6171 )
2018-04-02 13:54:12 +08:00
491f58d7d8
executor: track memory usage for merge join ( #6172 )
2018-03-31 17:17:23 +08:00
564e8896df
executor: track memory usage of index lookup join ( #6169 )
2018-03-30 10:48:11 +08:00
4886dcb1c4
executor: track the memory usage of IndexLookUpExecutor ( #6009 )
2018-03-20 12:55:12 +08:00
a3bf058304
*: 1. remove EnableChunk 2. implement Next in baseExecutor to return nil ( #5988 )
2018-03-09 17:40:11 +08:00
3e1a8ed36d
executor, infoschema: return a pseudo profiling table when system var profiling is set to 1 ( #5960 )
...
try fix mysql compability
2018-03-06 18:06:03 +08:00
ad814b0d6c
executor, util: employ memory Tracker to track memory usage during query execution ( #5826 )
2018-03-06 11:02:09 +08:00
12a1a254fc
config,distsql: add config for coprocessor streaming feature ( #5917 )
2018-02-28 21:36:22 -06:00
a687650c9f
metrics,tidb: add StatementsPerTransaction and TransactionDuration ( #5859 )
2018-02-11 21:01:37 -06:00
8cc9e45f41
variable,printer: add a session variable to show configuration. ( #5784 )
2018-02-05 22:54:41 +08:00
47cbc0bfce
*: remove varsutil package, make Systems a private member of SessionVars ( #5544 )
2018-01-25 01:43:07 -06:00
c5c0714cde
executor, sessionctx, util: log a warning when memory usage of HashJoinExec exceed threshhold ( #5658 )
2018-01-18 11:14:25 +08:00
f57b8438bc
table: index.addindices reuse temp buffer ( #5600 )
2018-01-17 05:32:30 -06:00
eddff3429a
*: importing data reduce memory allocations. ( #5549 )
2018-01-07 12:48:07 +08:00
8b149c3323
Prealloc / collides with package name ( #5560 )
2018-01-05 19:15:54 +08:00
04ef7d7992
*: shard implicit row ID ( #5513 )
2018-01-04 16:32:41 +08:00
36d9b61365
*: AddIndex skip checking unique constraint when TiDB is importing data. ( #5535 )
2018-01-02 20:08:49 +08:00
7995346d8d
*: clean up and some file renaming. ( #5440 )
2017-12-18 23:24:25 +08:00
65b2b0d452
*: Set the batch delete/insert size by session variable ( #5413 )
...
We hardcode it to 20k. But if the row size is large. It will still break
the transaction size limitation. So we need to provide a way to set it
dynamicially.
2017-12-17 21:11:18 -06:00
6ee266d0ca
executor: UpdateExec support NextChunk ( #5372 )
2017-12-14 15:32:06 +08:00
713bc797bb
*: clear delta info when roll back transaction ( #5390 )
2017-12-13 15:35:07 +08:00
5f468489ab
util: add kvencoder package, make transfer sql to key-values be possible. ( #5236 )
2017-11-29 18:01:31 +08:00
4c904639cf
*: add a session variable to control max chunk size ( #5233 )
2017-11-28 10:41:22 +08:00
8b15cb52b7
*: move StatementContext to its own package. ( #5177 )
2017-11-22 00:11:14 +08:00
dd2812fa55
mysql, expression: support sql_mode 'PAD_CHAR_TO_FULL_LENGTH' ( #5065 )
2017-11-21 13:22:29 +08:00
9048aa8afa
plan: refine the use of idAllocator ( #5088 )
2017-11-14 11:10:03 +08:00
ad1c532ea5
*: remove unused package and functions ( #5003 )
...
* *: remove unused package and functions
2017-11-04 03:36:25 -05:00
25879d3649
expression: support builtin function ROW_COUNT ( #4853 )
2017-10-28 09:18:58 +08:00
ae84a0a19f
stats: load column histograms by need ( #4847 )
2017-10-24 16:32:09 +08:00
0306bb0070
tidb: support a plan cache for prepared statements ( #3956 )
...
* tidb: support a plan cache for prepared statements
2017-10-24 00:55:51 -05:00
7d2804e43c
*: check sc.IgnoreZeroInDate when parsing string or number to date/datetime/timestamp ( #4732 )
2017-10-10 23:38:53 -05:00
545ceb7aec
*: close agg push down by default and remove cbo switch ( #4696 )
2017-09-30 13:43:21 +08:00
a6b5c666c5
*: support NotFillCache kv request option ( #4658 )
...
If TiDB send a request with NotFillCache option, the LRU cache of underlying
storage will not be touched. select statement with SQL_NO_CACHE will use it.
2017-09-29 02:06:38 -05:00
c899e5bb16
expression: rewrite builtin function: MOD ( #4407 )
2017-09-21 09:48:51 +08:00
879437475f
plan: refine return type, charset and collation for 'get variable' expression ( #4550 )
2017-09-19 14:52:19 +08:00
31a48f8d75
server: SSL/TLS support ( #3716 )
2017-09-07 13:36:28 +08:00
881d76840b
plan,executor: calculate generated columns in CRUD. ( #3951 )
2017-08-23 14:52:43 +08:00
31edc09341
Add a system variable to enable automatic split delete data into batches. ( #4256 )
...
* *: Batch delete data
2017-08-21 10:37:24 +08:00
a88ebb1cf6
*: use structure to store user identity ( #4078 )
...
*: use structure to store user identity
2017-08-14 03:37:36 -05:00
