Struct UpdateBuilder 

pub struct UpdateBuilder { /* private fields */ }

Fluent builder for constructing UPDATE statements.

Created by the update() entry-point function. Supports column assignments via .set(), an optional WHERE predicate, and an optional FROM clause for PostgreSQL/Snowflake-style multi-table updates.

Implementations

impl UpdateBuilder

pub fn set(self, column: &str, value: Expr) -> Self

Add a SET column = value assignment.

Call this method multiple times to set multiple columns.

pub fn where_(self, condition: Expr) -> Self

Set the WHERE clause to restrict which rows are updated.

pub fn from(self, table_name: &str) -> Self

Set the FROM clause for PostgreSQL/Snowflake-style UPDATE ... FROM ... syntax.

This allows joining against other tables within the UPDATE statement.

pub fn build(self) -> Expression

Consume this builder and produce the final Expression::Update AST node.

pub fn to_sql(self) -> String

Consume this builder, generate, and return the SQL string.