Distinct in sqlparser::ast

Distinct in sqlparser::ast - Rust

pub enum Distinct {
    All,
    Distinct,
    On(Vec<Expr>),
}

Expand description

ALL, DISTINCT, or DISTINCT ON (...) modifiers for SELECT lists.

Variants§

ALL (keep duplicate rows)

Generally this is the default if omitted, but omission should be represented as None::<Option<Distinct>>

DISTINCT (remove duplicate rows)

DISTINCT ON (...) (Postgres extension)