SelectBuilder

Struct SelectBuilder 

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pub struct SelectBuilder { /* private fields */ }
Expand description

Builder for SELECT statements.

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impl SelectBuilder

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pub fn new() -> Self

Create a new SELECT builder.

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pub fn with_cte(self, name: &str, query: SqlFragment) -> Self

Add a CTE (WITH clause).

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pub fn distinct(self) -> Self

Set DISTINCT.

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pub fn column(self, name: &str) -> Self

Add a column to select.

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pub fn column_as(self, name: &str, alias: &str) -> Self

Add a column with alias.

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pub fn qualified_column(self, table: &str, column: &str) -> Self

Add a qualified column (table.column).

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pub fn column_raw(self, sql: SqlFragment) -> Self

Add a raw SQL column expression.

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pub fn all_columns(self) -> Self

Add all columns (*).

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pub fn all_columns_from(self, table: &str) -> Self

Add all columns from a table (table.*).

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pub fn from_table(self, qi: &QualifiedIdentifier) -> Self

Set the FROM table.

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pub fn from_table_as(self, qi: &QualifiedIdentifier, alias: &str) -> Self

Set FROM with alias.

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pub fn from_raw(self, sql: SqlFragment) -> Self

Set FROM from raw SQL.

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pub fn inner_join(self, table: &str, condition: &str) -> Self

Add an INNER JOIN.

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pub fn left_join(self, table: &str, condition: &str) -> Self

Add a LEFT JOIN.

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pub fn left_join_lateral( self, subquery: SqlFragment, alias: &str, on: &str, ) -> Self

Add a LEFT JOIN LATERAL with subquery.

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pub fn where_expr(self, expr: Expr) -> Self

Add a WHERE clause.

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pub fn where_raw(self, sql: SqlFragment) -> Self

Add a raw WHERE clause.

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pub fn group_by(self, column: &str) -> Self

Add a GROUP BY column.

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pub fn having(self, expr: Expr) -> Self

Add a HAVING clause.

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pub fn order_by(self, expr: OrderExpr) -> Self

Add an ORDER BY clause.

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pub fn order_by_raw(self, sql: SqlFragment) -> Self

Add ORDER BY from raw SQL.

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pub fn limit(self, n: i64) -> Self

Set LIMIT.

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pub fn offset(self, n: i64) -> Self

Set OFFSET.

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pub fn build(self) -> SqlFragment

Build the SELECT statement.

Trait Implementations§

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impl Clone for SelectBuilder

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fn clone(&self) -> SelectBuilder

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 SelectBuilder

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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 Default for SelectBuilder

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fn default() -> SelectBuilder

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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.