From 17dda41131293a7c89effe75bf5f4ee637d2ee89 Mon Sep 17 00:00:00 2001
From: ritchie <ritchie46@gmail.com>
Date: Sat, 21 Dec 2024 17:36:34 +0100
Subject: [PATCH] remove unneeded rule

---
 .../plans/optimizer/collapse_and_project.rs   | 23 -------------------
 1 file changed, 23 deletions(-)

diff --git a/crates/polars-plan/src/plans/optimizer/collapse_and_project.rs b/crates/polars-plan/src/plans/optimizer/collapse_and_project.rs
index 266ac6cd3335..4bd0079a4827 100644
--- a/crates/polars-plan/src/plans/optimizer/collapse_and_project.rs
+++ b/crates/polars-plan/src/plans/optimizer/collapse_and_project.rs
@@ -123,29 +123,6 @@ impl OptimizationRule for SimpleProjectionAndCollapse {
                     None
                 }
             },
-            // Remove double sorts
-            Sort {
-                input,
-                by_column,
-                slice,
-                sort_options:
-                    sort_options @ SortMultipleOptions {
-                        maintain_order: false, // `maintain_order=True` is influenced by result of earlier sorts
-                        ..
-                    },
-            } => match lp_arena.get(*input) {
-                Sort {
-                    input: inner,
-                    slice: None,
-                    ..
-                } => Some(Sort {
-                    input: *inner,
-                    by_column: by_column.clone(),
-                    slice: *slice,
-                    sort_options: sort_options.clone(),
-                }),
-                _ => None,
-            },
             _ => None,
         }
     }