Enum toql_core::sql_expr::SqlExprToken

pub enum SqlExprToken {
    SelfAlias,
    OtherAlias,
    AuxParam(String),
    UnresolvedArg,
    Literal(String),
    Arg(SqlArg),
    Alias(String),
    Predicate {
        columns: Vec<PredicateColumn>,
        args: Vec<SqlArg>,
    },
}

Token that makes up SqlExpr. The expression is a string of tokens. To turn the expression into SQL, each

Variants

SelfAlias

Self alias in expression

OtherAlias

Other alias in expression

AuxParam(String)

Aux param in expression

UnresolvedArg

Unresolved arguent in expression

Literal(String)

Literal raw SQL in expression

Arg(SqlArg)

Argument in expression

Alias(String)

Canonical alias in expression

Predicate

Fields

columns: Vec<PredicateColumn>

args: Vec<SqlArg>

Predicate in expression A predicate token has been introduced to improve SQL formatting. Depending on the number of columns and arguments this translates different SQL.

Trait Implementations

impl Clone for SqlExprToken

fn clone(&self) -> SqlExprToken

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SqlExprToken

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

Formats the value using the given formatter.

impl Display for SqlExprToken

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

Formats the value using the given formatter.