359df6ecc2
variable, ddl: add session variable 'tidb_ddl_reorg_priority' to set operation priority of ddl reorg ( #7116 )
2018-08-08 17:16:05 +08:00
a5af7a0e1f
*: remove variable 'tidb_import_data' and rename SessionVars.ImportingData to LightningMode ( #7262 )
2018-08-03 10:00:03 +08:00
f4f1692fd1
*: remove FromID from expression.Column ( #7157 )
2018-07-30 11:06:02 +08:00
2fba9931c7
*: remove DatumRow ( #7165 )
2018-07-26 19:42:58 +08:00
437933d449
sessionctx, executor: Add correctness check when set system variables ( #7117 )
2018-07-24 18:49:15 +08:00
7c18d24933
executor, store: fixed daylight saving time issue ( #6823 )
...
Thank you for working on TiDB! Please read TiDB's [CONTRIBUTING](https://github.com/pingcap/tidb/blob/master/CONTRIBUTING.md ) document **BEFORE** filing this PR.
## What have you changed? (mandatory)
During coprocessor dag task, it first uses timezone `name`, if non-empty, to get legitimate timezone variable. To achieve this, we need to push down such data into tikv which leads to change the logic of building pushdown request. The logic I mentioned mainly resides in `executor` package.
I change `timeZoneOffset` to `zone` and add second return parameter `name string`. The intentioned of doing this to adopt the convention of `time` package.
For the same purpose, I change `GetTimeZone` to `Location`. As you can see, in `time` package, timezone was bind to `Location`.
## What are the type of the changes (mandatory)?
- Bug fix (non-breaking change which fixes an issue)
## How has this PR been tested (mandatory)?
unit-test
integration-test will be added shortly
2018-07-16 18:15:19 +08:00
63c4562c27
*: remove non-prepared plan cache ( #7040 )
...
* *: remove non-prepared plan cache
non-prepared plan cache is not usable if we can only do full string match.
And further development doesn't worth the effort.
2018-07-13 18:15:05 +08:00
e837e4b81c
*: add a session variable for table partition, tiny update ( #6913 )
2018-06-28 12:50:01 +07:00
6851878b9b
*: add session var 'tidb_ddl_reorg_worker_cnt' to control ddl reorg workers count ( #6441 )
...
* *: add session var 'tidb_ddl_reorg_worker_cnt' to control ddl reorg workers count
2018-06-27 22:36:18 +08:00
0ab0b50f25
stats: refine the pseudo condition for stats ( #6565 )
2018-06-27 17:05:37 +08:00
0fbb980f9b
stats: refine stats delta update ( #6808 )
2018-06-26 13:51:23 +08:00
8bec188b6a
session: add a global/session variable 'tidb_disable_txn_auto_retry' ( #6872 )
2018-06-21 17:26:14 +08:00
3d7528cbb3
*: add tidb_hashagg_partial/final_concurrency ( #6831 )
2018-06-14 10:17:08 +08:00
0ab1b228c0
config, variable: add memory quota config for a query ( #6788 )
2018-06-12 13:08:28 +08:00
39a8d0eb7a
executor: support parallel projection ( #6323 )
2018-06-07 22:50:54 +08:00
6f655593b5
sessionctx: make tidb_build_stats_concurrency global ( #6558 )
2018-05-18 18:45:47 +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
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
