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Commits on Jun 8, 2020

• session/statistics: discard feedbacks from delete / update (pingcap#17452)

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• server: check and report parser warnings (pingcap#17021)

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Commits on Jun 3, 2020

• statistics: improve estimation for index equal condition (pingcap#17366)

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Commits on May 21, 2020

• planner: check required order property for enforced stream aggregation (pingcap#17338)

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Commits on May 14, 2020

• planner: support UnionStmt in prepare plan cache (pingcap#16799)

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Commits on May 12, 2020

• sessionctx: record if a query hits plan cache in slow log (pingcap#17088)

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• planner: re-compile query if range rebuild fails for cached plan (pingcap#17090)

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Commits on Apr 23, 2020

• expression: mark row_count as un-cacheable (pingcap#16654)

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Commits on Apr 21, 2020

• expression: avoid Order By constant expression error when pl… (pingcap#16261)

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Commits on Apr 20, 2020

• planner: resolve order by item from select fields first when c… (pingcap#16332)

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Commits on Apr 15, 2020

• expression: mark random_bytes() as deferred function (pingcap#16367)

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Commits on Apr 14, 2020

• bindinfo: report error for completely invalid hint of bind_sql (pingcap#16059)

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Commits on Apr 10, 2020

• expression: fix panic of explain for connection when plan cache is enabled (pingcap#16206)

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Commits on Apr 3, 2020

• util/hint: resolve semantically equivalent bindings into a single one (pingcap#15895)

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• statistics: fix repetitive selectivity accounting and stabilify the result (pingcap#15536)

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• *: show correct result for system variable tidb_capture_plan_baselines (pingcap#16013)

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Commits on Apr 1, 2020

• planner: invalidate cached plan if no UnionScan for tables that need it (pingcap#15429)

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Commits on Mar 31, 2020

• planner: fix panic of merge join for tables with redundant indexes (pingcap#15840)

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• *: move hint and block hint processor to util directory (pingcap#15897)

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Commits on Mar 30, 2020

• bindinfo: build ID of BindRecord from Hint instead of explain query (pingcap#15781)

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Commits on Mar 27, 2020

• *: support ADMIN RELOAD BINDINGS to refresh binding cache (pingcap#15732)

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Commits on Mar 24, 2020

• bindinfo: set correct default_db for captured bindings (pingcap#15367)

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• planner: make multiple USE_INDEX_MERGE(t) hints take effect (pingcap#15603)

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Commits on Mar 19, 2020

• planner/bindinfo: fix occasional panic of baseline evolution (pingcap#15233)

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Commits on Mar 16, 2020

• expression: avoid reading/writing FieldType struct of Constant concurrently (pingcap#15364)

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Commits on Mar 4, 2020

• planner/expression: constant propagation and predicate pushdown should be aware of plan cache (pingcap#14941)

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Commits on Feb 25, 2020

• planner: fold constant in projection elimination and TopN push down (pingcap#14927)

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Commits on Feb 19, 2020

• planner: fix wrong result of BatchPointGet when plan cache is enabled (pingcap#14855)

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Commits on Feb 12, 2020

• executor: remove dead code about Cacheable function call (pingcap#14740)

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Commits on Jan 19, 2020

• expression: make EvalXXX method of deferred/normal constant consistent (pingcap#14401)

  

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Commits on Jan 15, 2020

• expression: disable int_col <cmp> non-int const folding for plan cache (pingcap#14120)

  

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Commits on Jan 8, 2020

• planner: fix panic when generating index merge path for unique index (pingcap#14382)

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Commits on Jan 7, 2020

• planner: apply max/min elimination when other aggregations exist (pingcap#14376)

  

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Commits on Jan 6, 2020

• expression: check ParamMarker in ConstItem when plan cache is enabled (pingcap#14200)

  

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Commits on Dec 27, 2019

• config: add validation for capacity of prepare plan cache (pingcap#14232)

  

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