pub struct MergeStmt {
pub label: String,
pub key_field: String,
pub key_value: Value,
pub var: Option<String>,
pub on_create: Vec<SetClause>,
pub on_match: Vec<SetClause>,
pub returns: Option<Vec<RetItem>>,
}Expand description
MERGE (n:Label {id: 'x'}) [ON CREATE SET …] [ON MATCH SET …] [RETURN …]
Exactly one property is allowed (the key). More properties → named error.
ON CREATE SET / ON MATCH SET apply inside the same write batch as the
insert-or-skip. returns, when Some, projects the node after commit.
Fields§
§label: String§key_field: StringThe single property that identifies the node. Value must be a string.
key_value: Value§var: Option<String>Optional bound variable for the MERGE node (for RETURN projection).
on_create: Vec<SetClause>ON CREATE SET assignments, applied only when the node is inserted.
on_match: Vec<SetClause>ON MATCH SET assignments, applied only when the node already exists.
returns: Option<Vec<RetItem>>Optional RETURN clause: project the node after commit.
Trait Implementations§
impl StructuralPartialEq for MergeStmt
Auto Trait Implementations§
impl Freeze for MergeStmt
impl RefUnwindSafe for MergeStmt
impl Send for MergeStmt
impl Sync for MergeStmt
impl Unpin for MergeStmt
impl UnsafeUnpin for MergeStmt
impl UnwindSafe for MergeStmt
Blanket Implementations§
Source§impl<T> ArchivePointee for T
impl<T> ArchivePointee for T
Source§type ArchivedMetadata = ()
type ArchivedMetadata = ()
The archived version of the pointer metadata for this type.
Source§fn pointer_metadata(
_: &<T as ArchivePointee>::ArchivedMetadata,
) -> <T as Pointee>::Metadata
fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata, ) -> <T as Pointee>::Metadata
Converts some archived metadata to the pointer metadata for itself.
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§impl<T> LayoutRaw for T
impl<T> LayoutRaw for T
Source§fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>
fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>
Returns the layout of the type.
Source§impl<T, N1, N2> Niching<NichedOption<T, N1>> for N2
impl<T, N1, N2> Niching<NichedOption<T, N1>> for N2
Source§unsafe fn is_niched(niched: *const NichedOption<T, N1>) -> bool
unsafe fn is_niched(niched: *const NichedOption<T, N1>) -> bool
Returns whether the given value has been niched. Read more
Source§fn resolve_niched(out: Place<NichedOption<T, N1>>)
fn resolve_niched(out: Place<NichedOption<T, N1>>)
Writes data to
out indicating that a T is niched.