Enum WriteMode 

pub enum WriteMode {
    Insert,
    Skip,
    Upsert,
}

Host-facing conflict semantics for a batched write.

Maps onto the same per-dialect SQL the cross-DB copy path uses (IfExists); exposed as its own enum so the write API names the write intent (insert / skip / upsert) rather than the copy-time “what if the target exists” framing.

Variants

Insert

Plain INSERT. A primary-key / unique conflict surfaces as a driver error and rejects the batch (or, under WriteOptions::isolate_failures, the offending rows).

Skip

Insert rows whose key is new; silently skip rows whose key already exists (ON CONFLICT DO NOTHING / INSERT IGNORE / MERGE … WHEN NOT MATCHED). Requires conflict columns.

Upsert

Insert new rows; overwrite the non-key columns of rows whose key already exists (ON CONFLICT DO UPDATE / ON DUPLICATE KEY UPDATE / full MERGE). Requires conflict columns.

Trait Implementations

impl Clone for WriteMode

fn clone(&self) -> WriteMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for WriteMode

impl Debug for WriteMode

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

Formats the value using the given formatter.

impl Default for WriteMode

fn default() -> WriteMode

Returns the “default value” for a type.

impl Eq for WriteMode

impl PartialEq for WriteMode

fn eq(&self, other: &WriteMode) -> 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 StructuralPartialEq for WriteMode