hknlof opened a new issue, #16478:
URL: https://github.com/apache/datafusion/issues/16478
### Describe the bug
Hi team,
I am analyzing some CVE data. Data is being read from an NdJson and as far
as I can tell, they have the same NULLABLE fields and no variances in casing.
```console
❯ grep AssignedTo all.json | wc -l
57029
❯ grep -i assignedto all.json | wc -l
57029
❯ grep assignedto all.json | wc -l
0
```
Hence, I would expect `df.describe()` to not run into any conversion
problems.
But, I get:
```console
Error: Custom { kind: Other, error: Execution("Schema error: No field named
assignedto. Did you mean '?table?.AssignedTo'?.") }
```
<details>
<summary>Code and more elaborate Output</summary>
```rust
async fn main() -> Result<(), std::io::Error> {
let ctx = SessionContext::new();
let df = ctx.read_json("./all.json",
NdJsonReadOptions::default()).await?;
for field in df.schema().fields().iter() {
println!("{:?}", field.name());
}
df.describe().await?;
Ok(())
}
```
**Output**:
```console
"AssignedTo"
"Bugs"
"CRD"
"Candidate"
"Description"
"DiscoveredBy"
"Notes"
"Patches"
"Priority"
"PublicDate"
"PublicDateAtUSN"
"References"
"UbuntuDescription"
"UpstreamLinks"
Error: Custom { kind: Other, error: Execution("Schema error: No field named
assignedto. Did you mean '?table?.AssignedTo'?.") }
```
</details>
### To Reproduce
Read a NdJson and call describe on the resulting DataFrame.
### Expected behavior
Describe should work on consistently named fields in JSON.
### Additional context
_No response_
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