Struct Case 

pub struct Case {
    pub operand: Option<Expression>,
    pub whens: Vec<(Expression, Expression)>,
    pub else_: Option<Expression>,
}

Represent a CASE expression (both simple and searched forms).

When operand is Some, this is a simple CASE (CASE x WHEN 1 THEN ...). When operand is None, this is a searched CASE (CASE WHEN x > 0 THEN ...). Each entry in whens is a (condition, result) pair.

Fields

operand: Option<Expression>

The operand for simple CASE, or None for searched CASE.

whens: Vec<(Expression, Expression)>

Pairs of (WHEN condition, THEN result).

else_: Option<Expression>

Optional ELSE result.

Trait Implementations

impl Clone for Case

fn clone(&self) -> Case

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Case

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Case

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Case

fn eq(&self, other: &Case) -> 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 Serialize for Case

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Case