Struct ViaHop 

pub struct ViaHop {
    pub table: TableName,
    pub foreign_key: ColumnName,
    pub filters: Option<Vec<Filter>>,
    pub on: Vec<ColumnPair>,
}

One table an aggregate passes through on its way to the aggregated table: a downward foreign-key hop. foreign_key is on table and points at the table before it (the parent, for the first hop).

Fields

table: TableName

The table this hop passes through.

foreign_key: ColumnName

The column on table pointing at the table before it.

filters: Option<Vec<Filter>>

Which rows of table the path passes through.

on: Vec<ColumnPair>

Extra column equalities between table and the table before it, ANDed with foreign_key.

Trait Implementations

impl Clone for ViaHop

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ViaHop

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ViaHop

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for ViaHop

Hashes on only when non-empty, so a hop without it keeps its content hash.

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 Serialize for ViaHop

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

where __S: Serializer,

Serialize this value into the given Serde serializer.