Enum TableFunctionKind 

pub enum TableFunctionKind {
    Unnest,
    UnnestWithOrdinality,
    GenerateSeries,
    JsonEach,
    JsonTree,
    FtsSearch,
}

FROM-clause table functions Alopex can plan (issue #151).

The registry is closed: a name outside this set is a planning error rather than a call into an open function namespace.

Variants

Unnest

UNNEST(vector) — one row per element.

UnnestWithOrdinality

UNNEST(array) WITH ORDINALITY — element and one-based position.

GenerateSeries

GENERATE_SERIES(start, stop [, step]) over integers.

JsonEach

JSON_EACH(json [, path]) — immediate children of JSON TEXT.

JsonTree

JSON_TREE(json [, path]) — recursive JSON TEXT traversal.

FtsSearch

FTS_SEARCH(table, column, query [, config]) — ranked full-text matches.

Implementations

impl TableFunctionKind

pub fn from_name(name: &str) -> Option<Self>

Resolve a FROM-clause function name, case-insensitively.

pub fn name(self) -> &'static str

Canonical uppercase spelling used in messages and plan output.

pub fn default_relation_name(self) -> &'static str

Default relation name when the item carries no alias (PostgreSQL uses the lowercase function name).

Trait Implementations

impl Clone for TableFunctionKind

fn clone(&self) -> TableFunctionKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TableFunctionKind

impl Debug for TableFunctionKind

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

Formats the value using the given formatter.

impl Eq for TableFunctionKind

impl PartialEq for TableFunctionKind

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for TableFunctionKind