Struct delta_sharing_server::protocol::action::Metadata

pub struct Metadata { /* private fields */ }

Representation of the table metadata.

The metadata of a table contains all the information required to correctly interpret the data files of the table.

Implementations

impl Metadata

pub fn id(&self) -> &str

Retrieve the unique table identifier.

pub fn name(&self) -> Option<&str>

Retrieve the table name provided by the user.

pub fn description(&self) -> Option<&str>

Retrieve the table description provided by the user.

pub fn format(&self) -> &FileFormat

Retrieve the specification of the table format.

pub fn schema_string(&self) -> &str

Retrieve the schema of the table, serialized as a string.

pub fn partition_columns(&self) -> &[String]

Retrieve an array of column names that are used to partition the table.

pub fn configuration(&self) -> &HashMap<String, String>

Retrieve a map containing configuration options for the table.

pub fn version(&self) -> Option<&str>

Retrieve the version of the table this metadata corresponds to.

pub fn size(&self) -> Option<u64>

Retrieve the size of the table in bytes.

pub fn num_files(&self) -> Option<u64>

Retrieve the number of files in the table.

Trait Implementations

impl Clone for Metadata

fn clone(&self) -> Metadata

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Metadata

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Metadata

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq<Metadata> for Metadata

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Metadata

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Metadata

impl StructuralEq for Metadata

impl StructuralPartialEq for Metadata