Enum Mod 

#[non_exhaustive]
pub enum Mod {
    Create(Box<ColumnFamily>),
    Update(Box<ColumnFamily>),
    Drop(bool),
}

Column family modifications.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Create(Box<ColumnFamily>)

Create a new column family with the specified schema, or fail if one already exists with the given ID.

Update(Box<ColumnFamily>)

Update an existing column family to the specified schema, or fail if no column family exists with the given ID.

Drop(bool)

Drop (delete) the column family with the given ID, or fail if no such family exists.

Trait Implementations

impl Clone for Mod

fn clone(&self) -> Mod

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Mod

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

Formats the value using the given formatter.

impl PartialEq for Mod

fn eq(&self, other: &Mod) -> 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 Mod