Struct MergeStmt 

pub struct MergeStmt {
    pub label: String,
    pub key_field: String,
    pub key_value: Value,
    pub ns: Option<Value>,
    pub var: Option<String>,
    pub on_create: Vec<SetClause>,
    pub on_match: Vec<SetClause>,
    pub returns: Option<Vec<RetItem>>,
}

MERGE (n:Label {id: 'x'}) [ON CREATE SET …] [ON MATCH SET …] [RETURN …]

Exactly one identifying property is allowed (the key). An optional ns names the namespace the create arm writes into; any other extra property is a 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: String

The single property that identifies the node. Value must be a string.

key_value: Value

ns: Option<Value>

Optional ns named in the MERGE pattern, distinct from the identifying key. Absent = the create arm does not name a namespace.

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 Clone for MergeStmt

fn clone(&self) -> MergeStmt

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MergeStmt

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

Formats the value using the given formatter.

impl PartialEq for MergeStmt

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for MergeStmt