Method concat

src/expr/src/row/collection.rs:98–111

Concatenate another [`RowCollection`] onto `self`, copying and reallocating both sets of rows. This does not reorder the rows; the output will be sorted only if the inputs are.

(&mut self, other: &RowCollection)

    ///
    /// This does not reorder the rows; the output will be sorted only if the inputs are.
    pub fn concat(&mut self, other: &RowCollection) {
        if other.count() == 0 {
            return;
        }

        // TODO(parkmycar): Using SegmentedBytes here would be nice.
        let byte_len = self.rows.byte_len() + other.rows.byte_len();
        let len = self.rows.len() + other.rows.len();
        let mut builder = Self::builder(byte_len, len);
        for (row, diff) in self.iter().chain(other.iter()) {
            builder.push(row, diff);
        }
        *self = builder.build();
    }

    /// Adjust a row count for the provided offset and limit.
    ///