Struct StructDataType 

pub struct StructDataType {
    pub fields: Vec<StructField>,
}

Struct/record type: an ordered list of named fields.

Supported natively by BigQuery (STRUCT), Databricks (STRUCT), ClickHouse (named Tuple) and DuckDB (STRUCT). Engines without a record type render their JSON type instead; the field names and types are still part of the declared type, they are simply not restated in the DDL.

Field order is significant: it is the order the design declared, it is the order every engine with a record type writes, and two structs holding the same fields in a different order are different types.

Example

use razeri_plugin_contract::{DataType, data_type::{StructDataType, StructField}};

let address = StructDataType::new(vec![
    StructField::new("street", DataType::varchar(200)),
    StructField::new("zip", DataType::varchar(10)),
]);
assert_eq!(address.fields.len(), 2);
assert_eq!(address.fields[0].name, "street");

Fields

fields: Vec<StructField>

The struct’s fields, in declaration order.

Implementations

impl StructDataType

pub fn new(fields: Vec<StructField>) -> Self

Creates a struct type from an ordered list of named fields.

Example

use razeri_plugin_contract::{DataType, data_type::{StructDataType, StructField}};

let point = StructDataType::new(vec![
    StructField::new("x", DataType::int()),
    StructField::new("y", DataType::int()),
]);
assert_eq!(point.fields[1].name, "y");

Trait Implementations

impl Clone for StructDataType

fn clone(&self) -> StructDataType

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for StructDataType

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for StructDataType

impl PartialEq for StructDataType

fn eq(&self, other: &StructDataType) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for StructDataType