diesel/expression/functions/
helper_types.rs

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#![allow(non_camel_case_types)]

use dsl::{AsExprOf, SqlTypeOf};
use expression::grouped::Grouped;
use expression::operators;
use sql_types::Bool;

/// The return type of [`not(expr)`](../dsl/fn.not.html)
pub type not<Expr> = operators::Not<Grouped<AsExprOf<Expr, Bool>>>;

/// The return type of `not(expr)`
#[deprecated(since = "1.1.0", note = "use `not` instead")]
#[cfg(feature = "with-deprecated")]
pub type Not<Expr> = not<Expr>;

/// The return type of [`max(expr)`](../dsl/fn.max.html)
pub type max<Expr> = super::aggregate_ordering::max::HelperType<SqlTypeOf<Expr>, Expr>;

/// The return type of [`min(expr)`](../dsl/fn.min.html)
pub type min<Expr> = super::aggregate_ordering::min::HelperType<SqlTypeOf<Expr>, Expr>;

/// The return type of [`sum(expr)`](../dsl/fn.sum.html)
pub type sum<Expr> = super::aggregate_folding::sum::HelperType<SqlTypeOf<Expr>, Expr>;

/// The return type of [`avg(expr)`](../dsl/fn.avg.html)
pub type avg<Expr> = super::aggregate_folding::avg::HelperType<SqlTypeOf<Expr>, Expr>;