Method as_scalar

graphlite/src/cache/subquery_cache.rs:57–67

Get scalar result for single-value subqueries

(&self)

    /// Get scalar result for single-value subqueries
    pub fn as_scalar(&self) -> Option<Value> {
        match self {
            SubqueryResult::Scalar(value) => value.clone(),
            SubqueryResult::Boolean(b) => Some(Value::Boolean(*b)),
            SubqueryResult::Set(values) => values.first().cloned(),
            SubqueryResult::FullResult(result) => result
                .rows
                .first()
                .and_then(|row| row.positional_values.first().cloned()),
        }
    }
}

impl CacheValue for SubqueryResult {