Struct ColumnId 

pub struct ColumnId {
    pub table: TableId,
    pub index: usize,
}

Uniquely identifies a column within a schema.

A ColumnId combines the TableId of the owning table with the column’s positional index within that table’s column list.

Examples

use toasty_core::schema::db::{ColumnId, TableId};

let id = ColumnId { table: TableId(0), index: 2 };
assert_eq!(id.index, 2);

Fields

table: TableId

The table this column belongs to.

index: usize

Zero-based position of this column in the table’s column list.

Trait Implementations

impl Clone for ColumnId

fn clone(&self) -> ColumnId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnId

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ColumnId

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<&Column> for ColumnId

fn from(value: &Column) -> Self

Converts to this type from the input type.

impl From<ColumnId> for ExprColumn

fn from(value: ColumnId) -> Self

Converts to this type from the input type.

impl From<ColumnId> for ExprReference

fn from(value: ColumnId) -> Self

Converts to this type from the input type.

impl From<ColumnId> for Projection

fn from(value: ColumnId) -> Self

Converts to this type from the input type.

impl Hash for ColumnId

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ColumnId

fn eq(&self, other: &ColumnId) -> 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 ColumnId

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for ColumnId

impl Eq for ColumnId

impl StructuralPartialEq for ColumnId