Struct Metadata

pub struct Metadata {
    pub id: String,
    pub name: Option<String>,
    pub description: Option<String>,
    pub format: Format,
    pub schema_string: String,
    pub partition_columns: Vec<String>,
    pub created_time: Option<i64>,
    pub configuration: HashMap<String, Option<String>>,
}

Defines a metadata action

Fields

id: String

Unique identifier for this table

name: Option<String>

User-provided identifier for this table

description: Option<String>

User-provided description for this table

format: Format

Specification of the encoding for the files stored in the table

schema_string: String

Schema of the table

partition_columns: Vec<String>

Column names by which the data should be partitioned

created_time: Option<i64>

The time when this metadata action is created, in milliseconds since the Unix epoch

configuration: HashMap<String, Option<String>>

Configuration options for the metadata action

Implementations

impl Metadata

pub fn try_new( schema: StructType, partition_columns: impl IntoIterator<Item = impl Into<String>>, configuration: HashMap<String, Option<String>>, ) -> DeltaResult<Self>

Create a new metadata action

pub fn with_name(self, name: impl Into<String>) -> Self

set the table name in the metadata action

pub fn with_description(self, description: impl Into<String>) -> Self

set the table description in the metadata action

pub fn with_created_time(self, created_time: i64) -> Self

set the table creation time in the metadata action

pub fn schema(&self) -> DeltaResult<StructType>

get the table schema

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 Default for Metadata

fn default() -> Metadata

Returns the “default value” for a type.

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 From<Metadata> for Action

fn from(a: Metadata) -> Self

Converts to this type from the input type.

impl PartialEq for Metadata

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

Tests for self and other values to be equal, and is used by ==.

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

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 StructuralPartialEq for Metadata