tmp2

Signed-off-by: junxiang Mu <[email protected]>

s3select/query/src/sql/physical/optimizer.rs

@@ -0,0 +1,12 @@
+use std::sync::Arc;
+
+use api::query::session::SessionCtx;
+use api::QueryResult;
+use datafusion::physical_optimizer::PhysicalOptimizerRule;
+use datafusion::physical_plan::ExecutionPlan;
+
+pub trait PhysicalOptimizer {
+    fn optimize(&self, plan: Arc<dyn ExecutionPlan>, session: &SessionCtx) -> QueryResult<Arc<dyn ExecutionPlan>>;
+
+    fn inject_optimizer_rule(&mut self, optimizer_rule: Arc<dyn PhysicalOptimizerRule + Send + Sync>);
+}