Struct Alias 

pub struct Alias {
    pub this: Expression,
    pub alias: Identifier,
    pub column_aliases: Vec<Identifier>,
    pub pre_alias_comments: Vec<String>,
    pub trailing_comments: Vec<String>,
}

Represent an aliased expression (expr AS name).

Used for column aliases in select-lists, table aliases on subqueries, and column alias lists on table-valued expressions (e.g. AS t(c1, c2)).

Fields

this: Expression

The expression being aliased.

alias: Identifier

The alias name (required for simple aliases, optional when only column aliases provided)

column_aliases: Vec<Identifier>

Optional column aliases for table-valued functions: AS t(col1, col2) or AS (col1, col2)

pre_alias_comments: Vec<String>

Comments that appeared between the expression and AS keyword

trailing_comments: Vec<String>

Trailing comments that appeared after the alias

Implementations

impl Alias

pub fn new(this: Expression, alias: Identifier) -> Self

Create a simple alias

pub fn with_columns(this: Expression, column_aliases: Vec<Identifier>) -> Self

Create an alias with column aliases only (no table alias name)

Trait Implementations

impl Clone for Alias

fn clone(&self) -> Alias

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Alias

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Alias

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Alias

fn eq(&self, other: &Alias) -> 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 Serialize for Alias

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Alias