Method is_null

nodedb-strict/src/decode.rs:99–105

Check whether column `col_idx` is null in the given tuple.

(&self, tuple: &[u8], col_idx: usize)

    /// Check whether column `col_idx` is null in the given tuple.
    pub fn is_null(&self, tuple: &[u8], col_idx: usize) -> Result<bool, StrictError> {
        self.check_bounds(col_idx)?;
        self.check_min_size(tuple)?;

        let bitmap_byte = tuple[9 + col_idx / 8];
        Ok(bitmap_byte & (1 << (col_idx % 8)) != 0)
    }

    /// Extract raw bytes for a fixed-size column. Returns `None` if null.
    ///