Remove Offset struct (apache#2734)

Author: andygrove

datafusion/core/src/logical_plan/mod.rs

@@ -66,8 +66,8 @@ pub use extension::UserDefinedLogicalNode;
 pub use operators::Operator;
 pub use plan::{
     CreateCatalogSchema, CreateExternalTable, CreateMemoryTable, CrossJoin, DropTable,
-    EmptyRelation, JoinConstraint, JoinType, Limit, LogicalPlan, Offset, Partitioning,
-    PlanType, PlanVisitor, Repartition, StringifiedPlan, Subquery, TableScan,
-    ToStringifiedPlan, Union, Values,
+    EmptyRelation, JoinConstraint, JoinType, Limit, LogicalPlan, Partitioning, PlanType,
+    PlanVisitor, Repartition, StringifiedPlan, Subquery, TableScan, ToStringifiedPlan,
+    Union, Values,
 };
 pub use registry::FunctionRegistry;

datafusion/core/src/logical_plan/plan.rs

@@ -297,15 +297,6 @@ pub struct Values {
     pub values: Vec<Vec<Expr>>,
 }
 
-/// Adjusts the starting point at which the rest of the expressions begin to effect
-#[derive(Clone)]
-pub struct Offset {
-    /// The offset
-    pub offset: usize,
-    /// The logical plan
-    pub input: Arc<LogicalPlan>,
-}
-
 /// Aggregates its input based on a set of grouping and aggregate
 /// expressions (e.g. SUM).
 #[derive(Clone)]

datafusion/core/src/physical_plan/limit.rs

@@ -483,7 +483,7 @@ mod tests {
     use crate::physical_plan::coalesce_partitions::CoalescePartitionsExec;
     use crate::physical_plan::common;
     use crate::prelude::SessionContext;
-    use crate::{test};
+    use crate::test;
 
     #[tokio::test]
     async fn limit() -> Result<()> {