Enum LoadDataDuplicate 

pub enum LoadDataDuplicate {
    Replace,
    Ignore,
}

The optional duplicate-key handling of a LoadDataStatement (mysql sql_yacc.yy opt_duplicate / duplicate). The default (no keyword) errors on a duplicate and is modelled as None, so this enum carries only the two written spellings. REPLACE and IGNORE are mutually exclusive — writing both is ER_PARSE_ERROR (engine-measured).

Variants

Replace

REPLACE — replace existing rows that collide on a unique key.

Ignore

IGNORE — skip input rows that collide on a unique key.

Trait Implementations

impl Clone for LoadDataDuplicate

fn clone(&self) -> LoadDataDuplicate

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for LoadDataDuplicate

impl Debug for LoadDataDuplicate

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for LoadDataDuplicate

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for LoadDataDuplicate

impl Hash for LoadDataDuplicate

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for LoadDataDuplicate

fn eq(&self, other: &LoadDataDuplicate) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Render for LoadDataDuplicate

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

Return the render for this value.

fn operand_binding_power(&self) -> Option<BindingPower>

The binding power this node contributes when it appears as an operand, or None (the default) for a self-delimiting node — an atom, call, or constructor — that never needs parentheses.

impl Serialize for LoadDataDuplicate

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 LoadDataDuplicate