pub fn try_from_qualified(qualifier: &str, schema: &Schema) -> Result<Self> {
        Self::new(
            schema
                .fields()
                .iter()
                .map(|f| DFField {
                    field: f.clone(),
                    qualifier: Some(qualifier.to_owned()),
                })
                .collect(),
        )
    }
/// Create a `DFSchema` from an Arrow schema
Create a `DFSchema` from an Arrow schema
Create a ` DFSchema ` from an Arrow schema
pub fn try_from_qualified(qualifier: &str, schema: &Schema) -> Result<Self> {
        Self::new(
            schema
                .fields()
                .iter()
                .map(|f| DFField {
                    field: f.clone(),
                    qualifier: Some(qualifier.to_owned()),
                })
                .collect(),
        )
    }
pub fn try_from_qualified ( qualifier : & str , schema : & Schema ) -> Result < Self > { Self :: new ( schema . fields ( ) . iter ( ) . map ( | f | DFField { field : f . clone ( ) , qualifier : Some ( qualifier . to_owned ( ) ) , } ) . collect ( ) , ) }
Create a `DFSchema` from an Arrow schema
Create a ` DFSchema ` from an Arrow schema
qualifier
&str
schema
&Schema
qualifier
&str
schema
&Schema