Struct IsNull 

pub struct IsNull {
    pub this: Expression,
    pub not: bool,
    pub postfix_form: bool,
}

IS NULL predicate

Fields

this: Expression

not: bool

postfix_form: bool

Whether this was the postfix form (ISNULL/NOTNULL) vs standard (IS NULL/IS NOT NULL)

Trait Implementations

impl Clone for IsNull

fn clone(&self) -> IsNull

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IsNull

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for IsNull

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for IsNull

fn eq(&self, other: &IsNull) -> 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 IsNull

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 IsNull