Struct RoutineOverloadContext 

pub struct RoutineOverloadContext<'a> {
    pub catalog: &'a dyn RoutineOverloadCatalog,
}

Fields

catalog: &'a dyn RoutineOverloadCatalog

Implementations

impl RoutineOverloadContext<'_>

pub fn resolve_static_sql_function( &self, name: &str, binding: Option<&FunctionBinding>, argument_names: &[Option<String>], argument_types: &[Option<ColumnType>], explicit_variadic: bool, ) -> Result<Option<Arc<SQLUserFunction>>, SQLError>

pub fn resolve_static_sql_function_match( &self, name: &str, binding: Option<&FunctionBinding>, argument_names: &[Option<String>], argument_types: &[Option<ColumnType>], explicit_variadic: bool, ) -> Result<Option<StaticFunctionMatch>, SQLError>

pub fn resolve_table_function_overload_with_builtins( &self, name: &str, binding: Option<&FunctionBinding>, argument_names: &[Option<String>], argument_types: &[Option<ColumnType>], explicit_variadic: bool, builtins: &[BuiltinFunctionOverload], ) -> Result<Option<ResolvedFunctionOverload>, SQLError>

pub fn resolve_static_sql_routine_match( &self, name: &str, binding: Option<&FunctionBinding>, argument_names: &[Option<String>], argument_types: &[Option<ColumnType>], explicit_variadic: bool, kind: RoutineCallKind, ) -> Result<Option<StaticFunctionMatch>, SQLError>

Trait Implementations

impl FunctionTypeResolver for RoutineOverloadContext<'_>

fn has_untyped_function(&self, name: &str) -> bool

Return whether an external runtime callback claims this unbound function name without exposing a declared SQL return type. Such callbacks must retain dispatch precedence instead of being rebound to a same-named built-in overload.

fn resolve_type_name(&self, name: &str) -> Result<Option<ColumnType>, SQLError>

Resolve a catalog-owned SQL type name that is not represented by the built-in ColumnType::from_sql_name mapping, such as a domain.

fn resolve_function_type( &self, name: &str, binding: Option<&FunctionBinding>, argument_names: &[Option<String>], argument_types: &[Option<ColumnType>], explicit_variadic: bool, ) -> Result<Option<ColumnType>, SQLError>

fn resolve_function_overload( &self, name: &str, binding: Option<&FunctionBinding>, argument_names: &[Option<String>], argument_types: &[Option<ColumnType>], explicit_variadic: bool, ) -> Result<Option<ResolvedFunctionOverload>, SQLError>

Resolve a catalog-backed overload together with the stable binding needed to execute it after built-in and user-defined candidates have been ranked.

fn is_scalar_function_binding( &self, binding: &FunctionBinding, ) -> Result<bool, SQLError>

Return whether an exact catalog-selected binding can execute in a scalar expression. The conservative default prevents aggregate, procedure, and set-returning routines from being attached to ScalarExpr::Func.

fn resolve_function_overload_with_builtins( &self, name: &str, binding: Option<&FunctionBinding>, argument_names: &[Option<String>], argument_types: &[Option<ColumnType>], explicit_variadic: bool, builtins: &[BuiltinFunctionOverload], ) -> Result<Option<ResolvedFunctionOverload>, SQLError>

Resolve catalog-backed routines and the supplied built-in overloads as one PostgreSQL candidate set. Implementations with catalog visibility should override this so search-path shadowing and unknown-category selection happen before a winner is chosen.

fn resolve_scalar_subquery_type( &self, _subquery: SubqueryId, _outer_schema: &RowSchema, _params: &[SQLParam], ) -> Result<Option<ColumnType>, SQLError>

Resolve the declared first-column type of a physical scalar-subquery slot when the owning execution context carries its plan arena.