Enum libquery::PreFilterResult

pub enum PreFilterResult {
    MayUse,
    NoData,
    MissingColumns,
}

Result of the pre_filter call from the PreFilter trait.

Variants

MayUse

The container might contain the relevant data and it has all the needed columns, so it can be used.

Note that the columns might be missing with some of the flow slices as being optional.

NoData

No relevant data may be inside.

MissingColumns

The data may be here, but some columns that whould be requested are not present.

Trait Implementations

impl Copy for PreFilterResult

impl Clone for PreFilterResult

fn clone(&self) -> PreFilterResult

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PreFilterResult

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Eq for PreFilterResult

impl PartialEq for PreFilterResult

fn eq(&self, __arg_0: &PreFilterResult) -> bool

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

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

This method tests for !=.