Struct DataframeSource 

pub struct DataframeSource {
    pub lazy: LazyFrame,
    pub has_header: bool,
    pub init_column_names: Vec<String>,
    pub ret_column_names: Vec<String>,
    pub is_in_and_ctx: bool,
}

Fields

lazy: LazyFrame

has_header: bool

init_column_names: Vec<String>

ret_column_names: Vec<String>

is_in_and_ctx: bool

Implementations

impl DataframeSource

pub fn new(lazy: LazyFrame) -> Self

impl DataframeSource

pub fn enter_and_ctx(&mut self)

pub fn exit_and_ctx(&mut self)

pub fn reset(&mut self)

pub fn set_init_column_names(&mut self, names: &Vec<String>)

pub fn set_has_header(&mut self, has_header: bool)

pub fn index2column(&self, index: usize) -> String

pub fn set_index_with_name(&mut self, index: usize, name: &str)

pub fn into_df(&self) -> FilterxResult<DataFrame>

pub fn lazy(&self) -> LazyFrame

pub fn update(&mut self, lazy: LazyFrame)

pub fn with_column(&mut self, e: Expr, new_name: Option<String>)

pub fn columns(&self) -> FilterxResult<Schema>

pub fn filter(&mut self, expr: Expr)

pub fn select(&mut self, columns: Vec<String>)

pub fn drop(&mut self, columns: Vec<String>)

pub fn unique(&mut self, columns: Vec<String>, keep: UniqueKeepStrategy)

pub fn slice(&mut self, offset: i64, length: usize)

pub fn rename(&mut self, old: &str, new: &str)

pub fn has_column(&self, name: &str)

pub fn check_column(&self, name: &str) -> bool

Trait Implementations

impl Clone for DataframeSource

fn clone(&self) -> DataframeSource

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl From<DataframeSource> for SourceInner

fn from(df: DataframeSource) -> Self

Converts to this type from the input type.