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AggregateOperator

graphmind::query::executor::operator

Struct AggregateOperator 

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pub struct AggregateOperator { /* private fields */ }
Expand description

Aggregate operator: GROUP BY + Aggregations

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impl AggregateOperator

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pub fn new( input: OperatorBox, group_by: Vec<(Expression, String)>, aggregates: Vec<AggregateFunction>, ) -> Self

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impl PhysicalOperator for AggregateOperator

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

Get the next record from this operator (read-only operations)
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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()
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fn reset(&mut self)

Reset the operator to start from the beginning
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fn describe(&self) -> OperatorDescription

Describe this operator for EXPLAIN output Returns (operator_name, details, children)
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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
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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)
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fn is_mutating(&self) -> bool

Returns true if this operator mutates the graph store

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fn into_either(self, into_left: bool) -> Either<Self, Self>

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