Struct RowGroupEntry 

pub struct RowGroupEntry {
    pub statistics: Option<ColumnStatistics>,
    pub positions: Vec<u64>,
}

A single row group entry in a row index

According to ORC spec, each entry contains:

• Statistics for the row group (min/max/null count)
• Stream positions for seeking to the row group (for future use)

Fields

statistics: Option<ColumnStatistics>

Statistics for this row group

positions: Vec<u64>

Stream positions for seeking

According to ORC spec, positions encode differently for:

• Uncompressed: [RLE_run_byte_offset, num_values_to_consume]
• Compressed: [compression_chunk_start, decompressed_bytes, num_values]

For columns with multiple streams, positions are concatenated: [PRESENT_positions…, DATA_positions…, LENGTH_positions…]

Note: Dictionary positions are NOT included (dictionary must be fully read)

Implementations

impl RowGroupEntry

pub fn new(statistics: Option<ColumnStatistics>, positions: Vec<u64>) -> Self

Trait Implementations

impl Clone for RowGroupEntry

fn clone(&self) -> RowGroupEntry

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RowGroupEntry

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.