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@ -135,6 +135,27 @@ impl<S: EncodedQuadsStore> SimpleEvaluator<S> { |
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iter |
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iter |
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})) |
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})) |
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} |
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} |
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PlanNode::Extend { |
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child, |
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position, |
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expression, |
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} => { |
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let eval = self.clone(); |
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Box::new( |
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self.eval_plan(*child, from) |
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.filter_map(move |tuple| match tuple { |
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Ok(mut tuple) => { |
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put_value( |
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position, |
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eval.eval_expression(&expression, &tuple)?, |
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&mut tuple, |
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); |
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Some(Ok(tuple)) |
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} |
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Err(error) => Some(Err(error)), |
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}), |
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) |
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} |
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PlanNode::HashDeduplicate { child } => { |
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PlanNode::HashDeduplicate { child } => { |
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let iter = self.eval_plan(*child, from); |
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let iter = self.eval_plan(*child, from); |
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let mut values = HashSet::with_capacity(iter.size_hint().0); |
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let mut values = HashSet::with_capacity(iter.size_hint().0); |
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@ -335,16 +356,17 @@ fn get_pattern_value( |
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fn put_pattern_value(selector: &PatternValue, value: EncodedTerm, tuple: &mut EncodedTuple) { |
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fn put_pattern_value(selector: &PatternValue, value: EncodedTerm, tuple: &mut EncodedTuple) { |
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match selector { |
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match selector { |
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PatternValue::Constant(_) => (), |
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PatternValue::Constant(_) => (), |
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PatternValue::Variable(v) => { |
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PatternValue::Variable(v) => put_value(*v, value, tuple), |
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let v = *v; |
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} |
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if tuple.len() > v { |
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} |
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tuple[v] = Some(value) |
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fn put_value(position: usize, value: EncodedTerm, tuple: &mut EncodedTuple) { |
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if tuple.len() > position { |
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tuple[position] = Some(value) |
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} else { |
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} else { |
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if tuple.len() < v { |
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if tuple.len() < position { |
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tuple.resize(v, None); |
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tuple.resize(position, None); |
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} |
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} |
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tuple.push(Some(value)) |
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tuple.push(Some(value)) |
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} |
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} |
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} |
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} |
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} |
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} |
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