Enum TableSource 

pub enum TableSource {
    Name(String),
    Subquery(Box<QueryExpr>),
    Function {
        name: String,
        args: Vec<String>,
        named_args: Vec<(String, f64)>,
    },
    InlineGraphFunction {
        name: String,
        nodes: Box<QueryExpr>,
        edges: Box<QueryExpr>,
        named_args: Vec<(String, f64)>,
    },
}

Structured FROM source for a TableQuery. Additive alongside the legacy TableQuery.table: String slot — callers that understand this type can branch on subqueries; callers that only read table fall back to the synthetic sentinel name and, for subqueries, produce an “unknown table” error until they migrate.

Variants

Name(String)

Plain table reference — equivalent to the legacy String form.

Subquery(Box<QueryExpr>)

A subquery in FROM position: FROM (SELECT …) AS alias.

Function

A table-valued function call in FROM position, e.g. FROM components(g) (issue #795). name is the function identifier; args are its positional identifier arguments; named_args are key => <f64> named arguments such as louvain(g, resolution => 0.5) (issue #796), preserved in source order. Positional args always precede named args.

Fields

name: String

args: Vec<String>

named_args: Vec<(String, f64)>

InlineGraphFunction

A graph-analytics table-valued function whose graph is supplied inline as two subqueries instead of a graph-collection reference (issue #799), e.g. components(nodes => (SELECT id FROM hosts), edges => (SELECT src, dst FROM links)).

Structurally distinct from Function so the executor can tell the inline form from the graph-collection form. nodes/edges are the two materialization subqueries (the first column of nodes is the node id; the first two-or-three columns of edges are (source, target [, weight])). named_args carries any remaining numeric named arguments (e.g. resolution => 0.5).

Fields

name: String

nodes: Box<QueryExpr>

edges: Box<QueryExpr>

named_args: Vec<(String, f64)>

Trait Implementations

impl Clone for TableSource

fn clone(&self) -> TableSource

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TableSource

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

Formats the value using the given formatter.