Enum ConflictMode 

pub enum ConflictMode {
    Error,
    Skip,
}

ConflictMode : What the target does with a row that collides with one already present. error is a plain INSERT (the default, and the behaviour of every run before #1216). skip is INSERT ... ON CONFLICT DO NOTHING, which makes re-sending an already-applied batch a no-op – the only thing that lets a run resume across the window where the previous attempt’s last batch may or may not have committed. skip is refused with a 400 if the target table has no unique constraint covering the mapped columns, since ON CONFLICT DO NOTHING would then never fire and would duplicate rather than skip. What the target does with a row that collides with one already present. error is a plain INSERT (the default, and the behaviour of every run before #1216). skip is INSERT ... ON CONFLICT DO NOTHING, which makes re-sending an already-applied batch a no-op – the only thing that lets a run resume across the window where the previous attempt’s last batch may or may not have committed. skip is refused with a 400 if the target table has no unique constraint covering the mapped columns, since ON CONFLICT DO NOTHING would then never fire and would duplicate rather than skip.

Variants

Error

Skip

Trait Implementations

impl Clone for ConflictMode

fn clone(&self) -> ConflictMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ConflictMode

impl Debug for ConflictMode

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

Formats the value using the given formatter.

impl Default for ConflictMode

fn default() -> ConflictMode

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ConflictMode

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for ConflictMode

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

Formats the value using the given formatter.

impl Eq for ConflictMode

impl Hash for ConflictMode

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 Ord for ConflictMode

fn cmp(&self, other: &ConflictMode) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for ConflictMode

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for ConflictMode

fn partial_cmp(&self, other: &ConflictMode) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for ConflictMode

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 ConflictMode