Struct structured::Table

pub struct Table<I> { /* private fields */ }

Structured data represented in a column-oriented form.

Implementations

impl<I> Table<I>where I: Hash + PartialEq + Eq,

pub fn new( schema: Arc<Schema>, columns: Vec<Column>, event_ids: HashMap<I, usize> ) -> Result<Self, &'static str>

Creates a new Table with the given schema and columns.

Errors

Returns an error if columns have different lengths.

pub fn append(&mut self, other: &mut Self)

Moves all the rows of other intot self, leaving other empty.

Panics

Panics if the types of columns are different, or the number of rows overflows usize.

pub fn columns(&self) -> Iter<'_, Column>

Returns an Iterator for columns.

pub fn column(&self, i: usize) -> Option<&Column>

Returns an immutable reference of a specific column

pub fn num_columns(&self) -> usize

Returns the number of columns in the table.

pub fn num_rows(&self) -> usize

Returns the number of rows in the table.

pub fn schema(&self) -> &Arc<Schema>

Returns the schema of the table.

pub fn statistics( &self, rows: &[usize], column_types: &Arc<Vec<ColumnType>>, r_enum_maps: &HashMap<usize, HashMap<u64, Vec<String>>>, time_intervals: &Arc<Vec<u32>>, numbers_of_top_n: &Arc<Vec<u32>>, precision: i32 ) -> Vec<ColumnStatistics>

Panics

Panics if time intervals or number of top n is not defined.

pub fn count_group_by( &self, rows: &[usize], column_types: &Arc<Vec<ColumnType>>, by_column: usize, by_interval: Option<u32>, count_columns: &Arc<Vec<usize>> ) -> Vec<GroupCount>

Panics

Panics if columns are not defined.

pub fn event_index(&self, eventid: &I) -> Option<&usize>

Trait Implementations

impl<I: Clone> Clone for Table<I>

fn clone(&self) -> Table<I>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<I: Debug> Debug for Table<I>

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

Formats the value using the given formatter.