Struct LogicalType

pub struct LogicalType { /* private fields */ }

Represents a logical type in the database - the underlying physical type can differ depending on the implementation

Implementations

impl LogicalType

pub fn new(typ: LogicalTypeId) -> Self

pub fn new_map_type(key: &LogicalType, value: &LogicalType) -> Self

Creates a map type from its key type and value type.

Arguments

• type: The key type and value type of map type to create.
• returns: The logical type.

pub fn new_list_type(child_type: &LogicalType) -> Self

Creates a list type from its child type.

Arguments

• type: The child type of list type to create.
• returns: The logical type.

pub fn new_struct_type(shape: HashMap<&str, LogicalType>) -> Self

Make LogicalType for struct

Argument

shape should be the fields and types in the struct

pub fn new_union_type(shape: HashMap<&str, LogicalType>) -> Self

Make LogicalType for union

Argument

shape should be the variants in the union

pub fn type_id(&self) -> LogicalTypeId

Retrieves the type class of a duckdb_logical_type.

Arguments

• returns: The type id

Trait Implementations

impl Clone for LogicalType

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for LogicalType

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

Formats the value using the given formatter.

impl Drop for LogicalType

fn drop(&mut self)

Executes the destructor for this type.

impl From<*mut c_void> for LogicalType

fn from(ptr: duckdb_logical_type) -> Self

Converts to this type from the input type.