Struct ColumnRef 

pub struct ColumnRef {
    pub name: Cow<'static, str>,
    pub table: Cow<'static, str>,
    pub schema: Cow<'static, str>,
}

Reference to a column.

Fields

name: Cow<'static, str>

Name of the column.

table: Cow<'static, str>

Name of the table.

schema: Cow<'static, str>

Name of the schema.

Implementations

impl ColumnRef

pub fn new(name: Cow<'static, str>) -> ColumnRef

pub fn table(&self) -> TableRef

Get the table reference for this column.

Trait Implementations

impl Clone for ColumnRef

fn clone(&self) -> ColumnRef

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnRef

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

Formats the value using the given formatter.

impl Default for ColumnRef

fn default() -> ColumnRef

Returns the “default value” for a type.

impl Expression for ColumnRef

fn write_query( &self, writer: &dyn SqlWriter, context: &mut Context, out: &mut DynQuery, )

Render the expression into SQL.

fn accept_visitor( &self, matcher: &mut dyn ExpressionVisitor, writer: &dyn SqlWriter, context: &mut Context, out: &mut DynQuery, ) -> bool

Match the expression.

fn as_identifier(&self, context: &mut Context) -> String

Convert expression to an identifier string.

impl<'a> From<&'a ColumnDef> for &'a ColumnRef

fn from(value: &'a ColumnDef) -> &'a ColumnRef

Converts to this type from the input type.

impl OpPrecedence for ColumnRef

fn precedence(&self, _writer: &dyn SqlWriter) -> i32

Lower numbers bind weaker, writers parenthesize when child precedence <= operator precedence.

impl PartialEq for ColumnRef

fn eq(&self, other: &ColumnRef) -> 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 Eq for ColumnRef

impl StructuralPartialEq for ColumnRef