Struct MergeOperator 

pub struct MergeOperator { /* private fields */ }

MERGE operator - upsert: match or create pattern

Implementations

impl MergeOperator

pub fn new( pattern: Pattern, on_create_set: Vec<(String, String, Expression)>, on_match_set: Vec<(String, String, Expression)>, ) -> Self

Trait Implementations

impl PhysicalOperator for MergeOperator

fn next(&mut self, _store: &GraphStore) -> ExecutionResult<Option<Record>>

Get the next record from this operator (read-only operations)

fn next_mut( &mut self, store: &mut GraphStore, _tenant_id: &str, ) -> ExecutionResult<Option<Record>>

Get the next record from this operator (write operations that mutate the store)

fn next_batch( &mut self, store: &GraphStore, batch_size: usize, ) -> ExecutionResult<Option<RecordBatch>>

Get the next batch of records (Vectorized Execution) Defaults to accumulating records from next()

fn reset(&mut self)

Reset the operator to start from the beginning

fn is_mutating(&self) -> bool

Returns true if this operator mutates the graph store

fn describe(&self) -> OperatorDescription

Describe this operator for EXPLAIN output Returns (operator_name, details, children)

fn next_batch_mut( &mut self, store: &mut GraphStore, tenant_id: &str, batch_size: usize, ) -> ExecutionResult<Option<RecordBatch>>

Get the next batch of records for mutating operations