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planner: refactor net seek cost calculation for IndexScan and TableScan #33727

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qw4990 opened this issue Apr 6, 2022 · 0 comments · Fixed by #33717
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planner: refactor net seek cost calculation for IndexScan and TableScan #33727

qw4990 opened this issue Apr 6, 2022 · 0 comments · Fixed by #33717
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sig/planner SIG: Planner type/enhancement The issue or PR belongs to an enhancement.

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qw4990 commented Apr 6, 2022

Enhancement

Now net seek costs for IndexScan and TableScan are calculated with scan costs together in getOriginalPhysicalTableScan and getOriginalPhysicalIndexScan. Better to calculate them together with net I/O costs in convertToRootTask and finishIndexPlan.
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sig/planner SIG: Planner type/enhancement The issue or PR belongs to an enhancement.
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planner: refactor net seek cost calculation for IndexScan and TableScan qw4990/tidb
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