Method try_new

datafusion/catalog-listing/src/table.rs:202–240

Create new [`ListingTable`] See documentation and example on [`ListingTable`] and [`ListingTableConfig`]

(config: ListingTableConfig)

    ///
    /// See documentation and example on [`ListingTable`] and [`ListingTableConfig`]
    pub fn try_new(config: ListingTableConfig) -> datafusion_common::Result<Self> {
        // Extract schema_source before moving other parts of the config
        let schema_source = config.schema_source();

        let file_schema = config
            .file_schema
            .ok_or_else(|| internal_datafusion_err!("No schema provided."))?;

        let options = config
            .options
            .ok_or_else(|| internal_datafusion_err!("No ListingOptions provided"))?;

        // Add the partition columns to the file schema
        let mut builder = SchemaBuilder::from(file_schema.as_ref().to_owned());
        for (part_col_name, part_col_type) in &options.table_partition_cols {
            builder.push(Field::new(part_col_name, part_col_type.clone(), false));
        }

        let table_schema = Arc::new(
            builder
                .finish()
                .with_metadata(file_schema.metadata().clone()),
        );

        let table = Self {
            table_paths: config.table_paths,
            file_schema,
            table_schema,
            schema_source,
            options,
            definition: None,
            collected_statistics: None,
            constraints: Constraints::default(),
            column_defaults: HashMap::new(),
            expr_adapter_factory: config.expr_adapter_factory,
        };

        Ok(table)
    }

    /// Assign constraints
    pub fn with_constraints(mut self, constraints: Constraints) -> Self {