Function polars::export::arrow::io::parquet::read::schema::read_schema_from_metadata

source · [−]
pub fn read_schema_from_metadata(
    metadata: &mut BTreeMap<String, String>
) -> Result<Option<Schema>, ArrowError>
This is supported on crate feature io_parquet only.
Expand description

Reads an arrow schema from Parquet’s file metadata. Returns None if no schema was found.

Errors

Errors iff the schema cannot be correctly parsed.