jayzhan211 commented on code in PR #14289:
URL: https://github.com/apache/datafusion/pull/14289#discussion_r1938140568
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datafusion/physical-expr/src/scalar_function.rs:
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@@ -186,6 +187,15 @@ impl PhysicalExpr for ScalarFunctionExpr {
.map(|e| e.evaluate(batch))
.collect::<Result<Vec<_>>>()?;
+ if self.fun.signature().null_handling == NullHandling::Propagate
+ && args.iter().any(
+ |arg| matches!(arg, ColumnarValue::Scalar(scalar) if
scalar.is_null()),
Review Comment:
`scalar_function(null, null, ...)` and
`scalar_function(column_contains_null, ...)`. We can only handling nulls but
not `column_contains_null` because we don't now the data
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