8d345cd09a
*: open auto analyze and stats feedback by default ( #6500 )
2018-05-08 19:18:50 +08:00
702f210473
make tidb_opt_insubquery_unfold global ( #6482 )
2018-05-07 21:15:08 +08:00
23e8c6e12b
*: add a system variable auto_analyze_ratio ( #6455 )
2018-05-04 10:54:30 +08:00
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
f287451eed
tidb: move tidb/*.go to session directory ( #6062 )
...
This change makes our top level directory clean.
2018-03-20 09:06:11 -05:00
6f43b37572
Add admin checksum table command ( #6067 )
2018-03-20 20:46:43 +08:00
4886dcb1c4
executor: track the memory usage of IndexLookUpExecutor ( #6009 )
2018-03-20 12:55:12 +08:00
65440001d9
set explicit_defaults_for_timestamp to ON ( #6068 )
2018-03-15 14:40:10 +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
d9934935ca
*: set have_profiling to NO ( #5907 )
...
Fixes issue #5666
2018-02-26 15:30:50 +08:00
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
dffc8c974d
executor, parser: treat tx_isolation, transaction_isolation or tx_read_only, transaction_read_only as synonyms variable ( #5700 )
2018-01-22 23:15:17 +08:00
6e772d3963
variable: Enlarge default distsql_scan_concurrency ( #5670 )
2018-01-19 13:28:50 +08:00
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
096190775e
session: add session variable to log query string. ( #5633 )
...
Use an atomic global variable to control the switch to log query.
And the query is logged before execution.
2018-01-16 10:12:51 +08:00
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
100bc58a83
parser, variable: fix #5478 , make 'set transaction read only' works. ( #5483 )
2017-12-25 21:36:15 +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
714b68c568
*: improve performance of show variables ( #5297 )
2017-12-05 19:23:52 +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
b7c722aab6
Support SQLMode ONLY_FULL_GROUP_BY and fix a join panic bug ( #4613 )
2017-11-06 10:53:29 +08:00
