Struct UpdateStatement 

pub struct UpdateStatement {
    pub table: String,
    pub assignments: Vec<(String, Expr)>,
    pub where_: Option<Expr>,
    pub returning: Option<Vec<SelectItem>>,
}

UPDATE <table> SET col = expr [, ...] [WHERE cond]. v4.4 — the engine evaluates expr per matched row in the table’s row order and rewrites cells in place. Indexed columns are dropped + re- inserted into the affected B-tree on each row change.

Fields

table: String

assignments: Vec<(String, Expr)>

where_: Option<Expr>

returning: Option<Vec<SelectItem>>

v7.9.4 — RETURNING <projection>. None = no RETURNING clause (legacy CommandComplete path). Some = engine evaluates the projection over each mutated row and streams the result as a Rows QueryResult.

Trait Implementations

impl Clone for UpdateStatement

fn clone(&self) -> UpdateStatement

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UpdateStatement

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

Formats the value using the given formatter.

impl Display for UpdateStatement

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

Formats the value using the given formatter.

impl PartialEq for UpdateStatement

fn eq(&self, other: &UpdateStatement) -> 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 StructuralPartialEq for UpdateStatement