Struct ColumnGroup 

pub struct ColumnGroup { /* private fields */ }

Column group stored on disk

Implementations

impl ColumnGroup

pub fn new( path: PathBuf, schema: TableSchema, level: u32, sequence: u64, row_count: u64, min_timestamp: u64, max_timestamp: u64, column_offsets: BTreeMap<String, ColumnIndex>, lsi: Option<LearnedSparseIndex>, ) -> Self

Create metadata for a column group

pub fn from_memtable( base_path: &Path, memtable: &ColumnarMemtable, level: u32, sequence: u64, ) -> Result<Self>

Write memtable to disk as a single SSTable file

pub fn open( path: PathBuf, schema: TableSchema, level: u32, sequence: u64, ) -> Result<Self>

Open a ColumnGroup from an existing SST file

pub fn file_path(&self) -> &Path

Get path to the SST file

pub fn column_index(&self, col_name: &str) -> Option<&ColumnIndex>

Get offset info for a column

pub fn level(&self) -> u32

Get level

pub fn row_count(&self) -> u64

Get row count

Trait Implementations

impl Debug for ColumnGroup

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

Formats the value using the given formatter.