Enum Expr 

pub enum Expr {
    Identifier(String),
    CompoundIdentifier {
        alias: String,
        ident: String,
    },
    IsNull(Box<Expr>),
    IsNotNull(Box<Expr>),
    InList {
        expr: Box<Expr>,
        list: Vec<Expr>,
        negated: bool,
    },
    InSubquery {
        expr: Box<Expr>,
        subquery: Box<Query>,
        negated: bool,
    },
    Between {
        expr: Box<Expr>,
        negated: bool,
        low: Box<Expr>,
        high: Box<Expr>,
    },
    Like {
        expr: Box<Expr>,
        negated: bool,
        pattern: Box<Expr>,
    },
    ILike {
        expr: Box<Expr>,
        negated: bool,
        pattern: Box<Expr>,
    },
    BinaryOp {
        left: Box<Expr>,
        op: BinaryOperator,
        right: Box<Expr>,
    },
    UnaryOp {
        op: UnaryOperator,
        expr: Box<Expr>,
    },
    Nested(Box<Expr>),
    Literal(AstLiteral),
    TypedString {
        data_type: DataType,
        value: String,
    },
    Function(Box<Function>),
    Aggregate(Box<Aggregate>),
    Exists {
        subquery: Box<Query>,
        negated: bool,
    },
    Subquery(Box<Query>),
    Case {
        operand: Option<Box<Expr>>,
        when_then: Vec<(Expr, Expr)>,
        else_result: Option<Box<Expr>>,
    },
    ArrayIndex {
        obj: Box<Expr>,
        indexes: Vec<Expr>,
    },
    Interval {
        expr: Box<Expr>,
        leading_field: Option<DateTimeField>,
        last_field: Option<DateTimeField>,
    },
    Array {
        elem: Vec<Expr>,
    },
}

Variants

Identifier(String)

CompoundIdentifier

Fields

alias: String

ident: String

IsNull(Box<Expr>)

IsNotNull(Box<Expr>)

InList

Fields

expr: Box<Expr>

list: Vec<Expr>

negated: bool

InSubquery

Fields

expr: Box<Expr>

subquery: Box<Query>

negated: bool

Between

Fields

expr: Box<Expr>

negated: bool

low: Box<Expr>

high: Box<Expr>

Like

Fields

expr: Box<Expr>

negated: bool

pattern: Box<Expr>

ILike

Fields

expr: Box<Expr>

negated: bool

pattern: Box<Expr>

BinaryOp

Fields

left: Box<Expr>

op: BinaryOperator

right: Box<Expr>

UnaryOp

Fields

op: UnaryOperator

expr: Box<Expr>

Nested(Box<Expr>)

Literal(AstLiteral)

TypedString

Fields

data_type: DataType

value: String

Function(Box<Function>)

Aggregate(Box<Aggregate>)

Exists

Fields

subquery: Box<Query>

negated: bool

Subquery(Box<Query>)

Case

Fields

operand: Option<Box<Expr>>

when_then: Vec<(Expr, Expr)>

else_result: Option<Box<Expr>>

ArrayIndex

Fields

obj: Box<Expr>

indexes: Vec<Expr>

Interval

Fields

expr: Box<Expr>

leading_field: Option<DateTimeField>

last_field: Option<DateTimeField>

Array

Fields

elem: Vec<Expr>

Trait Implementations

impl Clone for Expr

fn clone(&self) -> Expr

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Expr

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Expr

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<'a> From<&'a Expr> for ExprNode<'a>

fn from(expr: &'a Expr) -> Self

Converts to this type from the input type.

impl<'a> From<Expr> for ExprNode<'a>

fn from(expr: Expr) -> Self

Converts to this type from the input type.

impl Hash for Expr

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Expr

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

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl ToSql for Expr

fn to_sql(&self) -> String

impl ToSqlUnquoted for Expr

fn to_sql_unquoted(&self) -> String

impl<'a> TryFrom<ExprNode<'a>> for Expr

type Error = Error

The type returned in the event of a conversion error.

fn try_from(expr_node: ExprNode<'a>) -> Result<Self>

Performs the conversion.

impl TryFrom<Value> for Expr

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: Value) -> Result<Self>

Performs the conversion.

impl Eq for Expr

impl StructuralPartialEq for Expr