| concept | 中文 | object |
|---|---|---|
| Relational algebra | 关系代数 | RelNode |
| Row expressions | 行表达式 | RexNode |
| Traits | RelTrait | |
| Conventions | Convention | |
| Rules | RelOptRule | |
| Planners | RelOptPlanner | |
| Programs | Program |
关系代数
| 关系代数 | 对应的Spark操作 |
|---|---|
| TableScan | SparkTableScan |
| Project | SparkProject |
| Filter | SparkFilter |
| Aggregate | SparkAggregate |
| Join | SparkJoin |
| Union | SparkUnion |
| Intersect | SparkIntersect |
| Sort | SparkSort |
