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Type: Task
Resolution: Fixed
Priority: Major - P3
Fix Version/s: 8.1.0-rc0
Affects Version/s: None
Component/s: None
Labels:
None

Assigned Teams:

Query Optimization
Backwards Compatibility:
Fully Compatible
Sprint:
QO 2025-02-03
Confidence Status:
None
Work Order:
3

Aha! Reference:
None
Tracking Level:
None
Risk Status:
None
Exec Notes:
None
Goal Name(s):
None
Goal Link:
None

We need to make sure we don't accidently estimate cardinality for scans over structures we don't support yet: hashed indexes, sparse indexes, non-b-tree, clustered scans, collation etc.

is duplicated by

SERVER-99092 CE: Estimate is zero in cases where the index key is a tranformation of the original value

Closed

is related to

SERVER-100989 CBR may invariant on collection with collation with histogramCE enabled

Needs Scheduling

related to

SERVER-99092 CE: Estimate is zero in cases where the index key is a tranformation of the original value

Closed

SERVER-99690 CardinalityEstimator segfault when invoked over clustered collections

Closed

SERVER-99278 Estimate the cardinality of TextMatchNode QSNs

Closed

Assignee:: Ben Shteinfeld
Reporter:: Ben Shteinfeld
Participants:: Ben Shteinfeld, Githook User
Votes:: 0 Vote for this issue
Watchers:: 3 Start watching this issue

Created:: Nov 19 2024 08:06:07 PM UTC
Updated:: Feb 18 2025 04:20:44 PM UTC
Resolved:: Jan 24 2025 10:26:14 PM UTC
Confidence Status Last Update:: 22/Jan/25 6:15 PM

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