Struct CycleClause 

pub struct CycleClause {
    pub columns: Vec<String>,
    pub mark_column: String,
    pub mark_value: Option<Literal>,
    pub default_value: Option<Literal>,
    pub path_column: String,
}

v7.38 (read01 U16) — parsed CYCLE … SET … [TO … DEFAULT …] USING ….

Fields

columns: Vec<String>

Columns whose repetition along a path marks a cycle.

mark_column: String

The new boolean-ish column set to mark_value on a cycle.

mark_value: Option<Literal>

Value written to mark_column when a cycle is detected (default true); default_value otherwise. PG allows any type; SPG carries them as literals.

default_value: Option<Literal>

path_column: String

The new column accumulating the visited-row path array.

Trait Implementations

impl Clone for CycleClause

fn clone(&self) -> CycleClause

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CycleClause

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

Formats the value using the given formatter.

impl PartialEq for CycleClause

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for CycleClause