Function arrow_csv::reader::infer_schema_from_files

pub fn infer_schema_from_files(
    files: &[String],
    delimiter: u8,
    max_read_records: Option<usize>,
    has_header: bool,
) -> Result<Schema, ArrowError>

Infer schema from a list of CSV files by reading through first n records with max_read_records controlling the maximum number of records to read.

Files will be read in the given order until n records have been reached.

If max_read_records is not set, all files will be read fully to infer the schema.