Method try_dict_encode_columns

nodedb-columnar/src/memtable/mod.rs:107–115

Convert low-cardinality `String` columns to `DictEncoded` in-place.

(&mut self, max_cardinality: u32)

    /// Convert low-cardinality `String` columns to `DictEncoded` in-place.
    pub fn try_dict_encode_columns(&mut self, max_cardinality: u32) {
        for col in &mut self.columns {
            if let ColumnData::String { .. } = col
                && let Some(encoded) = ColumnData::try_dict_encode(col, max_cardinality)
            {
                *col = encoded;
            }
        }
    }

    /// Iterate rows as `Vec<Value>`. For scan/read operations.
    pub fn iter_rows(&self) -> MemtableRowIter<'_> {