Enum ColumnName 

pub enum ColumnName {
    Column(ColumnNameValue),
    UnknownColumn(Option<ColumnNameValue>),
    Star,
}

Variants

Column(ColumnNameValue)

UnknownColumn(Option<ColumnNameValue>)

There’s a fallback mechanism that we need to propagate through the expressions/types. We can see this with:

select case when true then 'a' else now()::text end;
-- column named `now`, propagating the function name
-- vs
select case when true then 'a' else 'b' end;
-- column named `case`

Star

Implementations

impl ColumnName

pub fn from_target(target: Target) -> Option<(ColumnName, SyntaxNode)>

pub fn inferred_from_target(target: Target) -> Option<(ColumnName, SyntaxNode)>

pub fn to_string(&self) -> Option<String>

Trait Implementations

impl Clone for ColumnName

fn clone(&self) -> ColumnName

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnName

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

Formats the value using the given formatter.

impl PartialEq for ColumnName

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ColumnName