alamb commented on code in PR #2772:
URL: https://github.com/apache/arrow-datafusion/pull/2772#discussion_r905228259
##########
datafusion/optimizer/src/utils.rs:
##########
@@ -18,22 +18,15 @@
//! Collection of utility functions that are leveraged by the query optimizer
rules
use crate::{OptimizerConfig, OptimizerRule};
-use datafusion_common::{DataFusionError, Result, ScalarValue};
+use datafusion_common::Result;
use datafusion_expr::{
and,
- expr::GroupingSet,
- lit,
logical_plan::{Filter, LogicalPlan},
utils::from_plan,
Expr, Operator,
};
use std::sync::Arc;
-const CASE_EXPR_MARKER: &str = "__DATAFUSION_CASE_EXPR__";
Review Comment:
🔥 very nice
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