AdamGS commented on code in PR #20111:
URL: https://github.com/apache/datafusion/pull/20111#discussion_r2755409711
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datafusion/physical-expr/src/simplifier/const_evaluator.rs:
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@@ -40,17 +42,17 @@ use crate::expressions::{Column, Literal};
/// - `(1 + 2) * 3` -> `9` (with bottom-up traversal)
/// - `'hello' || ' world'` -> `'hello world'`
pub fn simplify_const_expr(
- expr: &Arc<dyn PhysicalExpr>,
+ expr: Arc<dyn PhysicalExpr>,
) -> Result<Transformed<Arc<dyn PhysicalExpr>>> {
- if !can_evaluate_as_constant(expr) {
- return Ok(Transformed::no(Arc::clone(expr)));
+ if !can_evaluate_as_constant(&expr) {
+ return Ok(Transformed::no(expr));
}
// Create a 1-row dummy batch for evaluation
- let batch = create_dummy_batch()?;
+ let batch = BATCH.get_or_init(create_dummy_batch);
Review Comment:
this is really ugly, I'm removing it locally, will push soon.
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