jackwener opened a new pull request, #4192:
URL: https://github.com/apache/arrow-datafusion/pull/4192
# Which issue does this PR close?
Closes #3864.
We can propagate `empty_relation` to eliminate useless plan.
```sql
| logical_plan after eliminate_filter | Projection:
t1.column1 |
| | Inner Join:
t1.column1 = ta1.column1 |
| |
TableScan: t1 |
| |
Projection: ta1.column1, alias=ta1 |
| |
Projection: t2.column1, alias=ta1 |
| | Inner
Join: t2.column1 = ta2.column1 |
| |
TableScan: t2 |
| |
Projection: ta2.column1, alias=ta2 |
| |
Projection: t3.column1, alias=ta2 |
| |
EmptyRelation |
| logical_plan after eliminate_limit | EmptyRelation
|
```
# Rationale for this change
# What changes are included in this PR?
# Are these changes tested?
# Are there any user-facing changes?
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