elbaro opened a new issue, #5112:
URL: https://github.com/apache/arrow-datafusion/issues/5112
**Is your feature request related to a problem or challenge? Please describe
what you are trying to do.**
A clear and concise description of what the problem is. Ex. I'm always
frustrated when [...]
(This section helps Arrow developers understand the context and *why* for
this feature, in addition to the *what*)
```rs
let ctx = SessionContext::new();
let s3 = object_store::aws::AmazonS3Builder::from_env()
.with_bucket_name("my-bucket")
.with_region("us-east-1")
.build()?;
ctx.runtime_env()
.register_object_store("s3", "my-bucket", Arc::new(s3));
let uris = vec![
"s3://a/b/c/1.parquet",
"s3://a/b/c/2.parquet",
];
let uris = uris.into_iter().map(|uri|
ListingTableUrl::parse(uri).unwrap()).collect::<Vec<_>>();
let table =
Arc::new(ListingTable::try_new(ListingTableConfig::new_with_multi_paths(uris))?);
let df = ctx.read_table(table)?;
```
gives
```
error: Internal error: No schema provided.. This was likely caused by a bug
in DataFusion's code and we would welcome that you file an bug report in our
issue tracker
```
I had to manually call `infer()`:
```rs
let mut config = ListingTableConfig::new_with_multi_paths(uris);
config = config.infer(&ctx.state()).await?;
```
**Describe the solution you'd like**
A clear and concise description of what you want to happen.
DataFusion should call `infer()` if config is not set.
**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features
you've considered.
**Additional context**
Add any other context or screenshots about the feature request here.
Parquet files have schema in them, and it it common to omit schema when
reading or writing parquet files.
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