Commit Graph

122 Commits

Author SHA1 Message Date
800cf83e02 memory: global mem resources arbitrator (#63073)
close pingcap/tidb#58194
2025-10-30 13:13:49 +00:00
85e6857638 traceevent: fix point-get short path and prev_trace_id tracking (#64147)
ref pingcap/tidb#64008
2025-10-29 07:29:01 +00:00
1a9221eacb *: add a variable for dynamic slow log trigger rules with global (supporting ConnID-specific) and session scope (#63779)
close pingcap/tidb#63778
2025-10-23 06:21:16 +00:00
e22494d43d variable: mark tidb_index_serial_scan_concurrency as deprecated (#64023)
close pingcap/tidb#63931
2025-10-21 17:54:46 +00:00
4e3507a43c executor: force pushdown aggregate to TiKV inside admin check table (#63665)
close pingcap/tidb#63492
2025-10-11 15:41:45 +00:00
007861065e planner: create index with embedded analyze (#63143)
close pingcap/tidb#63326
2025-09-30 04:03:25 +00:00
79d1306f62 *: parse and match slow log trigger rules for multi-dimensional triggering (#63132)
close pingcap/tidb#63131
2025-09-24 03:52:58 +00:00
a7400e539e txn: follower read only affect read-only statements (#62852)
close pingcap/tidb#62856
2025-09-22 05:21:19 +00:00
tpp
6ba98357b9 planner: Exists subquery to join variable (#63416)
ref pingcap/tidb#44850
2025-09-10 13:18:33 +00:00
d022959e78 planner: keep join keys for join optimization in constant propagation (#63404)
close pingcap/tidb#60076, close pingcap/tidb#63314
2025-09-10 02:07:48 +00:00
ec3ade5dea planner: allow cartesian joins in greedy join order algo to explore better join orders (#63309)
close pingcap/tidb#63290
2025-09-09 15:44:57 +00:00
tpp
013cacffeb planner: Add variable for no_decorrelate in select list (#63204)
close pingcap/tidb#51116
2025-09-03 18:34:00 +00:00
50e9e88a75 planner: update the fundamental NDV scaling estimation formula (#63068)
close pingcap/tidb#54812
2025-08-27 14:03:34 +00:00
c7c45c2d0a planner,selectivity: record the default selectivity (#63102)
close pingcap/tidb#55366
2025-08-26 08:42:18 +00:00
5fab436e60 planner: use expoBackoff for GROUP BY cardinality estimation when no … (#62813)
close pingcap/tidb#62756
2025-08-25 21:16:10 +00:00
d3a8bdc50f txn, planner: Fix the problem that with pessimistic-auto-commit enabled, some internal transactions may try to commit transaction with MaxUint64 (#62881)
close pingcap/tidb#62775
2025-08-25 06:38:19 +00:00
1dac78fd92 crossks: add info schema coordinator (#62712)
ref pingcap/tidb#61702
2025-08-04 11:40:18 +00:00
e54fe94984 planner: TTL scan can trigger sync/async load/generateRuntimeFilter (#62616)
close pingcap/tidb#61822
2025-07-30 17:18:16 +00:00
433b3710fa planner: use addedRows for out of range and add skew risk ratio (#62363)
ref pingcap/tidb#62093
2025-07-25 02:13:13 +00:00
b61518066b sessionctx: separate the slow log functionality from the session file (#62415) 2025-07-17 04:19:03 +00:00
81370d4c72 planner: add skew risk ratio for range pred (#62035)
close pingcap/tidb#62093
2025-07-07 20:32:30 +00:00
d87ec2b188 planner: RegardNULLAsPoint should be true as default (#62194)
close pingcap/tidb#62196
2025-07-07 11:09:00 +00:00
d31c573cf2 planner: remove useless code (#61968) 2025-07-04 00:49:15 +00:00
tpp
2a74539ace planner: extend order ratio to joins (#61687)
close pingcap/tidb#62034
2025-07-01 02:36:18 +00:00
dbb2c9c833 planner,ddl: rightly fix issue of add foreign key too slow in big table (#61945)
ref pingcap/tidb#40111
2025-06-24 18:12:12 +00:00
52ca7d49b4 planner: record explored plans into tidb_statement_stats when running explain explore (#61850)
ref pingcap/tidb#60148
2025-06-23 18:27:06 +00:00
1ef4c269cd planner: set the default of the tidb_cost_model_version correctly (#61608)
close pingcap/tidb#61565
2025-06-10 05:22:28 +00:00
0d8e2bb4c5 planner: Make SET_VAR hints restore the correct session variable values after execution. (#61165)
close pingcap/tidb#60905
2025-06-05 17:23:29 +00:00
c85f3338e2 planner: consider PreferRange when exploring new plans (#61251)
ref pingcap/tidb#60148
2025-05-22 02:21:10 +00:00
bf9fbde9e9 planner: add variable control for index join build v2 and default them on (#60592)
close pingcap/tidb#60106
2025-05-21 08:34:46 +00:00
dfc4eee0b4 planner: a new function to get all relevant optimizer variables related to a certain SQL for SPM (#61119)
ref pingcap/tidb#60148
2025-05-15 18:36:20 +00:00
1b0a54ca86 session: gopls modernize (#60856)
close pingcap/tidb#60855
2025-05-07 22:47:30 +00:00
tpp
3dc48a1653 planner: add skew risk for equals (#60648)
close pingcap/tidb#60722
2025-04-24 04:11:46 +00:00
tpp
d46ecaa4c3 planner: add optimizer cost factors (#60333)
close pingcap/tidb#60357
2025-04-10 21:56:33 +00:00
84183c5550 session: set default value for hash join v2 in NewSessionVars (#60365)
ref pingcap/tidb#53127
2025-04-02 06:51:51 +00:00
914e4ce8d8 session: add a session variable to control whether to use hash join v2 in TiFlash (#60300)
close pingcap/tidb#60299
2025-03-29 04:39:31 +00:00
95181316d5 planner: revert and fix "remove the useless variable tidb_enable_point_get_cache from #36844". (#60272)
close pingcap/tidb#36598
2025-03-27 16:39:52 +00:00
797674c899 sessionctx: reuse Mutex in StatementContext struct (#60004)
close pingcap/tidb#58600
2025-03-12 07:49:54 +00:00
cca5361a8e variable: tidb_pipelined_dml_resource_policy (#57352)
ref pingcap/tidb#50215
2025-03-06 12:03:20 +00:00
b7e1c201db session, variable: add privilege check to set session_states (#59601)
close pingcap/tidb#59600
2025-02-18 17:51:31 +00:00
0c99ccb269 session: track LastCommitTS in SessionVars and check timestamps of later txns are larger (#57305)
close pingcap/tidb#57165
2025-02-13 05:11:58 +00:00
cf4d252af8 *: split definition out of variable pkg and refactor some reorg methods (#59146)
ref pingcap/tidb#57229, ref pingcap/tidb#57497
2025-01-23 09:24:44 +00:00
51d723b5e2 sessionctx, executor, infoschema: Add fine grained network traffic stats in slow log (#59041)
ref pingcap/tidb#57543
2025-01-22 02:19:05 +00:00
bf939fa79a *: don't handle live updates of column size (#58596)
close pingcap/tidb#58595
2025-01-06 19:42:49 +00:00
0097df9034 executor,sessionctx: handle last_insert_id(0) like MySQL (#58204)
close pingcap/tidb#58201
2024-12-27 21:22:00 +00:00
a3d60bcfc6 executor: Optimize statement summary performance by avoiding heap memory allocation (#58023)
ref pingcap/tidb#56649
2024-12-11 17:00:12 +00:00
12b942112e *: avoid unlock of unlocked mutex panic on TableDeltaMap (#57799)
close pingcap/tidb#57798
2024-12-05 02:22:14 +00:00
0374ae26b9 planner: provide a system view information_schema.tidb_plan_cache to allow users to see info in the cache (#57699)
ref pingcap/tidb#54057
2024-11-27 03:16:47 +00:00
e5c98671a4 ddl: support scatter region in cluster/global level (#56157)
ref tikv/pd#8424, ref pingcap/tidb#54886, close pingcap/tidb#55184
2024-09-25 15:25:29 +00:00
9129323378 *: Deprecate tidb_enable_table_partition and always set to ON (#56190)
close pingcap/tidb#56189
2024-09-25 12:29:34 +00:00