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Commits on Sep 28, 2023

• planner: always use callWithSCtx to allocate sctx and handle Txn in stats_handler (pingcap#47349)

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• planner: unify ways of executing SQLs in stats_handle package (pingcap#47340)

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Commits on Sep 27, 2023

• planner: unify ways to execute SQLs in stats_handle package (pingcap#47324)

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• planner: move some common code on stats to stats_util (pingcap#47312)

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Commits on Sep 26, 2023

• planner: move stats_hist and stats_json code into a separate package (pingcap#47294)

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• planner: move stats_load and stats_save code into a separate package (pingcap#47282)

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Commits on Sep 25, 2023

• planner: move ext_stats code into a separate package (pingcap#47250)

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Commits on Sep 22, 2023

• planner: move auto_analyze code into a separate package (pingcap#47194)

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• planner: move index_usage code into a separate package (pingcap#47163)

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Commits on Sep 19, 2023

• planner: remove StatsHandler.mu (pingcap#47082)

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• planner: fix Uncertain Results caused by MERGE_JOIN (pingcap#47078)

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• planner: use the session pool to execute SQLs in statshandler (pingcap#47065)

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• planner: consider connection collation when reusing cached plans (pingcap#47072)

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Commits on Sep 18, 2023

• planner: create a separate unified function to update variables for statistics sctx (pingcap#47051)

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• planner: use the session pool to execute SQLs in statshandler (pingcap#47007)

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Commits on Sep 14, 2023

• planner: refactor to make tableStatsDelta thread-safe (pingcap#46977)

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• planner: refactor to make colStatsUsageMap thread-safe (pingcap#46949)

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Commits on Sep 13, 2023

• planner: update binding's original_sql when upgrading (pingcap#46940)

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Commits on Sep 12, 2023

• planner: fix the issue that binding for in (?) cannot work for in (?,?,?) (pingcap#46896)

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Commits on Sep 11, 2023

• planner: fix the unstable test TestFixControl45132 (pingcap#46849)

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• planner: Adjust the log level and returned value when cacheableChecker check *ast.TableName nodes (pingcap#46831)

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Commits on Sep 5, 2023

• planner: add more test for plan cache (pingcap#46640)

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Commits on Sep 4, 2023

• planner: optimize the performance of PlanCacheParamList.String() (pingcap#46592)

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Commits on Sep 1, 2023

• planner: introduce a new empirical rule into the Skyline pruning (pingcap#46559)

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Commits on Aug 31, 2023

• planner: adjust N used in TopN cost formula based on the total number of rows (pingcap#46368)

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Commits on Aug 30, 2023

• planner: disable non-prep plan cache by default (pingcap#46504)

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• planner: remove some unnecessary estimation code (pingcap#46498)

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Commits on Aug 29, 2023

• planner: move some estimation functions from the physical-optimization package into cardinality package (pingcap#46479)

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• planner: move some estimation functions from the physical-optimization package into cardinality package (pingcap#46467)

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Commits on Aug 28, 2023

• planner: Move some NDV and join estimation functions from the physical-optimization package into cardinality package (pingcap#46442)

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• planner: Move the Selectivity function from the stats package into cardinality package (pingcap#46438)

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Commits on Aug 25, 2023

• planner: Move the Selectivity function from the stats package into cardinality package (pingcap#46417)

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• planner: Move the Selectivity function from the stats package into cardinality package (pingcap#46410)

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Commits on Aug 24, 2023

• planner: Move the Selectivity function from the stats package into cardinality package (pingcap#46405)

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• planner: Move the Selectivity function from the stats package into cardinality package (pingcap#46383)

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