berkaysynnada commented on code in PR #13146:
URL: https://github.com/apache/datafusion/pull/13146#discussion_r1824232347


##########
datafusion/core/src/datasource/physical_plan/mod.rs:
##########
@@ -66,6 +66,7 @@ use arrow::datatypes::{DataType, SchemaRef};
 use datafusion_physical_expr::expressions::Column;
 use datafusion_physical_expr::PhysicalSortExpr;
 
+use datafusion_physical_expr_common::sort_expr::LexOrdering;

Review Comment:
   ```suggestion
   use datafusion_physical_expr_common::sort_expr::LexOrdering;
   
   ```



##########
datafusion/core/benches/sort.rs:
##########
@@ -257,15 +258,15 @@ impl BenchCase {
 }
 
 /// Make sort exprs for each column in `schema`
-fn make_sort_exprs(schema: &Schema) -> Vec<PhysicalSortExpr> {
+fn make_sort_exprs(schema: &Schema) -> LexOrdering {
     schema
         .fields()
         .iter()
         .map(|f| PhysicalSortExpr {
             expr: col(f.name(), schema).unwrap(),
             options: SortOptions::default(),
         })
-        .collect()
+        .collect::<LexOrdering>()

Review Comment:
   ```suggestion
           .collect()
   ```



##########
datafusion/physical-expr/src/equivalence/properties.rs:
##########
@@ -1358,8 +1363,13 @@ fn generate_dependency_orderings(
             prefix_orderings
                 .iter()
                 .permutations(prefix_orderings.len())
-                .map(|prefixes| 
prefixes.into_iter().flatten().cloned().collect())
-                .collect::<Vec<_>>()
+                .map(|prefixes| {
+                    prefixes
+                        .into_iter()
+                        .flat_map(|ordering| ordering.inner.clone())
+                        .collect()
+                })
+                .collect::<Vec<LexOrdering>>()

Review Comment:
   ```suggestion
                   .collect::<Vec<_>>()
   ```



##########
datafusion/physical-plan/src/joins/symmetric_hash_join.rs:
##########
@@ -1627,6 +1630,7 @@ mod tests {
     use datafusion_expr::Operator;
     use datafusion_physical_expr::expressions::{binary, col, lit, Column};
 
+    use datafusion_physical_expr_common::sort_expr::{LexOrdering, 
PhysicalSortExpr};

Review Comment:
   ```suggestion
       use datafusion_physical_expr_common::sort_expr::{LexOrdering, 
PhysicalSortExpr};
       
   ```



##########
datafusion/physical-expr/src/equivalence/properties.rs:
##########
@@ -3564,9 +3574,9 @@ mod tests {
                     ordering
                         .iter()
                         .map(|name| parse_sort_expr(name, schema))
-                        .collect::<Vec<_>>()
+                        .collect::<LexOrdering>()
                 })
-                .collect::<Vec<_>>();
+                .collect::<Vec<LexOrdering>>();

Review Comment:
   ```suggestion
                   .collect::<Vec<_>>();
   ```



##########
datafusion/physical-expr/src/equivalence/properties.rs:
##########
@@ -639,8 +640,10 @@ impl EquivalenceProperties {
         // Generate all valid orderings, given substituted expressions.
         let res = new_orderings
             .into_iter()
+            .map(|ordering| ordering.inner)
             .multi_cartesian_product()
-            .collect::<Vec<_>>();
+            .map(LexOrdering::new)
+            .collect::<Vec<LexOrdering>>();

Review Comment:
   ```suggestion
               .collect::<Vec<_>>();
   ```



##########
datafusion/core/src/datasource/physical_plan/statistics.rs:
##########
@@ -26,6 +26,7 @@
 
 use std::sync::Arc;
 
+use crate::datasource::listing::PartitionedFile;

Review Comment:
   ```suggestion
   use crate::datasource::listing::PartitionedFile;
   
   ```



##########
datafusion/core/src/physical_optimizer/enforce_distribution.rs:
##########
@@ -55,6 +55,7 @@ use datafusion_physical_expr::{
 use datafusion_physical_plan::windows::{get_best_fitting_window, 
BoundedWindowAggExec};
 use datafusion_physical_plan::ExecutionPlanProperties;
 
+use datafusion_physical_expr_common::sort_expr::LexOrdering;
 use datafusion_physical_optimizer::output_requirements::OutputRequirementExec;
 use datafusion_physical_optimizer::PhysicalOptimizerRule;
 use itertools::izip;

Review Comment:
   ```suggestion
   use datafusion_physical_expr_common::sort_expr::LexOrdering;
   use 
datafusion_physical_optimizer::output_requirements::OutputRequirementExec;
   use datafusion_physical_optimizer::PhysicalOptimizerRule;
   
   use itertools::izip;
   ```



##########
datafusion/core/src/datasource/physical_plan/file_scan_config.rs:
##########
@@ -34,8 +34,9 @@ use arrow_array::{ArrayRef, DictionaryArray, RecordBatch, 
RecordBatchOptions};
 use arrow_schema::{DataType, Field, Schema, SchemaRef};
 use datafusion_common::stats::Precision;
 use datafusion_common::{exec_err, ColumnStatistics, DataFusionError, 
Statistics};
-use datafusion_physical_expr::{LexOrdering, PhysicalSortExpr};
+use datafusion_physical_expr::LexOrdering;
 
+use datafusion_physical_expr_common::sort_expr::LexOrderingRef;
 use log::warn;

Review Comment:
   ```suggestion
   use datafusion_physical_expr::LexOrdering;
   use datafusion_physical_expr_common::sort_expr::LexOrderingRef;
   
   use log::warn;
   ```



##########
datafusion/core/src/physical_optimizer/enforce_sorting.rs:
##########
@@ -61,12 +61,13 @@ use crate::physical_plan::{Distribution, ExecutionPlan, 
InputOrderMode};
 
 use datafusion_common::plan_err;
 use datafusion_common::tree_node::{Transformed, TransformedResult, TreeNode};
-use datafusion_physical_expr::{Partitioning, PhysicalSortExpr, 
PhysicalSortRequirement};
+use datafusion_physical_expr::{Partitioning, PhysicalSortRequirement};
 use datafusion_physical_plan::limit::{GlobalLimitExec, LocalLimitExec};
 use datafusion_physical_plan::repartition::RepartitionExec;
 use datafusion_physical_plan::sorts::partial_sort::PartialSortExec;
 use datafusion_physical_plan::ExecutionPlanProperties;
 
+use datafusion_physical_expr_common::sort_expr::{LexOrdering, LexOrderingRef};
 use datafusion_physical_optimizer::PhysicalOptimizerRule;
 use itertools::izip;

Review Comment:
   ```suggestion
   use datafusion_physical_expr_common::sort_expr::{LexOrdering, 
LexOrderingRef};
   use datafusion_physical_optimizer::PhysicalOptimizerRule;
   
   use itertools::izip;
   ```



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