Struct clickhouse_rs::types::Block

pub struct Block { /* fields omitted */ }

Represents Clickhouse Block

Methods

impl Block

pub fn new() -> Self

Constructs a new, empty Block.

pub fn row_count(&self) -> usize

Return the number of rows in the current block.

pub fn column_count(&self) -> usize

Return the number of columns in the current block.

pub fn columns(&self) -> &[Column]

This method returns a slice of columns.

pub fn get<'a, T, I>(&'a self, row: usize, col: I) -> Result<T, Error> where
    T: FromSql<'a>,
    I: ColumnIdx + Copy, 

Get the value of a particular cell of the block.

pub fn add_column<S>(self, name: &str, values: S) -> Self where
    S: ColumnFrom, 

Add new column into this block

pub fn is_empty(&self) -> bool

Returns true if the block contains no elements.

Important traits for Rows<'a>

impl<'a> Iterator for Rows<'a> type Item = Row<'a>;

pub fn rows(&self) -> Rows

This method returns a iterator of rows.

Trait Implementations

impl Clone for Block

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl AsRef<Block> for Block

fn as_ref(&self) -> &Self

Performs the conversion.

impl Default for Block

fn default() -> Block

Returns the "default value" for a type.

impl PartialEq<Block> for Block

fn eq(&self, other: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use] fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl Debug for Block

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

Formats the value using the given formatter.