Table

Struct Table 

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pub struct Table {
    pub id: TableId,
    pub name: String,
    pub columns: Vec<Column>,
    pub primary_key: PrimaryKey,
    pub indices: Vec<Index>,
}
Expand description

A database table with its columns, primary key, and indices.

§Examples

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

let table = Table::new(TableId(0), "users".to_string());
assert_eq!(table.name, "users");
assert!(table.columns.is_empty());

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§id: TableId

Uniquely identifies a table within the schema.

§name: String

Name of the table as it appears in the database.

§columns: Vec<Column>

The table’s columns, in order.

§primary_key: PrimaryKey

The table’s primary key definition.

§indices: Vec<Index>

Secondary indices on this table.

Implementations§

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impl Table

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pub fn primary_key_column(&self, i: usize) -> &Column

Returns the i-th column of this table’s primary key.

§Panics

Panics if i is out of bounds for the primary key column list.

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pub fn primary_key_columns(&self) -> impl ExactSizeIterator<Item = &Column> + '_

Returns an iterator over the columns that make up this table’s primary key.

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pub fn column(&self, id: impl Into<ColumnId>) -> &Column

Returns the column identified by id.

Only the column’s index field is used; the table component is ignored.

§Panics

Panics if the column index is out of bounds.

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pub fn resolve(&self, projection: &Projection) -> &Column

Resolves a single-step Projection to a column.

§Panics

Panics if the projection is empty or contains more than one step.

Trait Implementations§

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impl Clone for Table

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fn clone(&self) -> Table

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Table

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

Formats the value using the given formatter. Read more
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impl<'de> Deserialize<'de> for Table

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

Deserialize this value from the given Serde deserializer. Read more
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impl<'a, T> IntoExprTarget<'a, T> for &'a Table

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fn into_expr_target(self, _schema: &'a T) -> ExprTarget<'a>

Converts self into an ExprTarget using the provided schema.
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impl Serialize for Table

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

Serialize this value into the given Serde serializer. Read more

Auto Trait Implementations§

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impl Freeze for Table

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impl RefUnwindSafe for Table

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impl Send for Table

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impl Sync for Table

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impl Unpin for Table

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impl UnwindSafe for Table

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,