Enum SelectMode 

pub enum SelectMode {
    All,
    Partial,
}

SELECT 模式

Variants

All

SELECT *（默认）

Partial

SELECT col1, col2, …（部分选择）

Trait Implementations

impl Clone for SelectMode

fn clone(&self) -> SelectMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SelectMode

impl Debug for SelectMode

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

Formats the value using the given formatter.

impl Default for SelectMode

fn default() -> SelectMode

Returns the “default value” for a type.

impl Eq for SelectMode

impl PartialEq for SelectMode

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SelectMode