Details
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Type:
Task
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Status: In Progress (View Workflow)
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Priority:
Major
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Resolution: Unresolved
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Fix Version/s: 10.10
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Component/s: Optimizer
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Labels:
Description
There is a bunch of known issues with condition selectivity computations for join prefixes : (MDEV-20740, MDEV-20595, MDEV-20697, MDEV-20740, MDEV-17783, MDEV-21633, MDEV-21813, etc)
This task is an umbrella task for fixing them.
Attachments
Issue Links
- relates to
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MDEV-17783 AddressSanitizer: stack-buffer-overflow in table_cond_selectivity with optimizer_use_condition_selectivity > 1, join_cache_level >2
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- Closed
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MDEV-20697 Take selectivity of join conditions into account correctly with optimizer_use_condition_selectivity > 1
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- Stalled
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MDEV-20740 Odd computations in calculate_cond_selectivity_for_table
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- Open
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MDEV-21377 Eq_ref access not picked by query with optimizer_use_condition_selectivity > 1
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- In Review
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MDEV-21633 Assertion `tmp >= 0' failed in best_access_path with rowid_filter=ON
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- Stalled
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MDEV-21813 Optimizer choosing the wrong index despite the cost calculation
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- In Progress
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MDEV-25830 optimizer_use_condition_selectivity=4 sometimes produces worse plan than optimizer_use_condition_selectivity=1
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- Closed
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- mentioned in
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