rdettai opened a new pull request #965:
URL: https://github.com/apache/arrow-datafusion/pull/965
# Which issue does this PR close?
Closes #962.
# Rationale for this change
Cost based optimizations are executed during the logical plan optimization.
This breaks the intent of separating the logical and physical plan. Usually,
the logical plan is supposed to be optimized using rule based optimizations
only. It is in the physical plan selection that the cost based optimization
should kick in.
# What changes are included in this PR?
- move `statistics()` method from `TableProvider` to `ExecutionPlan`
# Are there any user-facing changes?
Custom implems of the TableProvider and ExecutionPlan will not work the same.
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