planner: assumed data distribution of out-of-range estimation might not be correct in some cases
Open
affects-7.5
epic/cardinality-estimation
report/customer
sig/planner
type/enhancement
- Dominant language
- Go
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Description
## Enhancement
Currently, we assumes all newly added data are uniformly distributed, but this assumption might not be correct in some cases.
Below is a real bad case from one customer:
The data in the predicate is out-of-range, and the estimation result has a large error.
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