Enum TableFunction 

pub enum TableFunction {
    Range,
    GenerateSeries,
    ReadParquet,
    ReadCsv,
}

Which table function a call resolved to.

An enum rather than a name, because the executor dispatches on this and a string comparison per operator build is a string comparison that can be spelled wrong.

Variants

Range

range(stop), range(start, stop), range(start, stop, step), stopping before the end.

GenerateSeries

The same three, stopping on the end.

ReadParquet

read_parquet(path), the rows of a Parquet file.

ReadCsv

read_csv(path), the rows of a CSV file, with everything about how it is written sniffed.

Implementations

impl TableFunction

pub const fn name(self) -> &'static str

The name the plan records and an error message says.

pub const fn inclusive(self) -> bool

Whether the last value is produced.

Only the two series functions differ here. The file readers answer false and nothing asks them.

pub fn lookup(name: &str) -> Option<Self>

The function of that name, if there is one.

Trait Implementations

impl Clone for TableFunction

fn clone(&self) -> TableFunction

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TableFunction

impl Debug for TableFunction

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

Formats the value using the given formatter.

impl Eq for TableFunction

impl PartialEq for TableFunction

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

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for TableFunction