westonpace commented on issue #10181:
URL: https://github.com/apache/datafusion/issues/10181#issuecomment-2070887996
I think I'd be happy with 2. The example you linked is how we are using
datafusion. Here is an updated example that fails with the error:
```
// For example, let's say you have some integers in an array
let b = Arc::new(Int32Array::from(vec![4, 5, 6, 7, 8, 7, 4]));
let a = Arc::new(StructArray::new(
vec![Field::new("b", DataType::Int32, false)].into(),
vec![b],
None,
));
let batch = RecordBatch::try_from_iter([("a", a as _)])?;
// If you want to find all rows where the expression `a < 5 OR a = 8` is
true
let expr = col("a")
.field("b")
.lt(lit(5))
.or(col("a").field("b").eq(lit(8)));
// First, you make a "physical expression" from the logical `Expr`
let physical_expr = physical_expr(&batch.schema(), expr)?;
```
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