Enum FilePushdownSupport

pub enum FilePushdownSupport {
    NoSupport,
    NotSupportedForFilter,
    Supported,
}

An enum to distinguish between different states when determining if certain filters can be pushed down to file scanning

Variants

NoSupport

The file format/system being asked does not support any sort of pushdown. This should be used even if the file format theoretically supports some sort of pushdown, but it’s not enabled or implemented yet.

NotSupportedForFilter

The file format/system being asked does support pushdown, but it can’t make it work for the provided filter/expression

Supported

The file format/system being asked does support pushdown and can make it work for the provided filter/expression

Trait Implementations

impl Debug for FilePushdownSupport

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

Formats the value using the given formatter.

impl PartialEq for FilePushdownSupport

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for FilePushdownSupport