| Package | Description | 
|---|---|
| io.druid.sql.calcite.rule | 
| Class and Description | 
|---|
| CaseFilteredAggregatorRule
 Rule that converts CASE-style filtered aggregation into true filtered aggregations. 
 | 
| DruidRelToBindableRule | 
| DruidRelToDruidRule | 
| DruidSemiJoinRule
 Planner rule adapted from Calcite 1.11.0's SemiJoinRule. 
 | 
| ProjectAggregatePruneUnusedCallRule
 Rule that prunes unused aggregators after a projection. 
 | 
| SortCollapseRule
 Collapses two adjacent Sort operations together. 
 | 
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