hmadison opened a new issue, #16695:
URL: https://github.com/apache/datafusion/issues/16695
### Describe the bug
When attempting to evaluate a logical plan which mixes un-nesting and
sub-queries, an unfiltered call to show will return the full set of columns,
but attempting to filter on any column returned yields the following error:
```
Error: SchemaError(FieldNotFound { field: Column { relation: None, name:
"__unnest_placeholder(one.__unnest_placeholder(mock.metadata).product).name" },
valid_fields: [Column { relation: Some(Bare { table: "mock" }), name:
"metadata" }] }, Some(""))
```
### To Reproduce
With `nested.ndjson` as:
```ndjson
{"metadata": {"product": {"name": "Product Name"}}}
```
The following test case reproduces the error:
```rust
use datafusion::common::DataFusionError;
use datafusion::prelude::{NdJsonReadOptions, SessionContext};
#[tokio::test]
async fn test_bug() -> Result<(), DataFusionError> {
let ctx = SessionContext::new();
ctx.register_json(
"mock",
"tests/fixtures/nested.ndjson",
NdJsonReadOptions::default().file_extension("ndjson")
).await?;
let query = r#"
WITH one AS (SELECT unnest(metadata) FROM mock),
two AS (SELECT
unnest("__unnest_placeholder(mock.metadata).product") FROM one)
SELECT * FROM two WHERE
"__unnest_placeholder(one.__unnest_placeholder(mock.metadata).product).name" ==
'Product Name'
"#;
let frame = ctx.sql(query).await?;
frame.show().await?;
Ok(())
}
```
### Expected behavior
_No response_
### Additional context
_No response_
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