alamb commented on code in PR #15716:
URL: https://github.com/apache/datafusion/pull/15716#discussion_r2068480882
##########
datafusion/physical-expr/src/intervals/cp_solver.rs:
##########
@@ -645,6 +645,17 @@ impl ExprIntervalGraph {
.map(|child| self.graph[*child].interval())
.collect::<Vec<_>>();
let node_interval = self.graph[node].interval();
+ // Special case: true OR could in principle be propagated by 3
interval sets,
+ // (i.e. left true, or right true, or both true) however we do not
support this yet.
+ if node_interval == &Interval::CERTAINLY_TRUE
+ && self.graph[node]
+ .expr
+ .as_any()
+ .downcast_ref::<BinaryExpr>()
+ .is_some_and(|expr| expr.op() == &Operator::Or)
+ {
+ return not_impl_err!("OR operator cannot yet propagate true
intervals");
+ }
Review Comment:
this makes sense to me
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