| Name | Type | Package | Detail |
| Aggregate | Class | sql.execution | Detail |
| AggregateEvaluation | Class | sql.execution | Detail |
| AggregatingEdgeContext | Class | graphx.impl | Detail |
| Aggregator | Class | apache.spark | Detail |
| DTStatsAggregator | Class | tree.impl | Detail |
| EntropyAggregator | Class | tree.impurity | Detail |
| GeneratedAggregate | Class | sql.execution | Detail |
| GiniAggregator | Class | tree.impurity | Detail |
| ImpurityAggregator | Class | tree.impurity | Detail |
| VarianceAggregator | Class | tree.impurity | Detail |
