Struct mz_sql::plan::query::SelectOptionExtracted

pub struct SelectOptionExtracted {
    pub(crate) seen: BTreeSet<SelectOptionName>,
    pub expected_group_size: Option<u64>,
    pub aggregate_input_group_size: Option<u64>,
    pub distinct_on_input_group_size: Option<u64>,
    pub limit_input_group_size: Option<u64>,
}

Fields

seen: BTreeSet<SelectOptionName>

expected_group_size: Option<u64>

aggregate_input_group_size: Option<u64>

distinct_on_input_group_size: Option<u64>

limit_input_group_size: Option<u64>

Implementations

impl SelectOptionExtracted

fn into_values(self, catalog: &dyn SessionCatalog) -> Vec<SelectOption<Aug>>

Trait Implementations

impl Debug for SelectOptionExtracted

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

Formats the value using the given formatter.

impl Default for SelectOptionExtracted

fn default() -> Self

Returns the “default value” for a type.

impl TryFrom<SelectOptionExtracted> for GroupSizeHints

fn try_from( select_option_extracted: SelectOptionExtracted, ) -> Result<Self, Self::Error>

Creates group size hints from extracted SELECT OPTIONS validating that either the old EXPECTED GROUP SIZE syntax was used or alternatively the new syntax with AGGREGATE INPUT GROUP SIZE, DISTINCT ON INPUT GROUP SIZE, and LIMIT INPUT GROUP SIZE. If the two syntax versions are mixed in the same OPTIONS clause, an error is returned.[^1] [^1] https://github.com/MaterializeInc/materialize/blob/main/doc/developer/design/20230829_topk_size_hint.md

type Error = PlanError

The type returned in the event of a conversion error.

impl TryFrom<Vec<SelectOption<Aug>>> for SelectOptionExtracted

type Error = PlanError

The type returned in the event of a conversion error.

fn try_from( v: Vec<SelectOption<Aug>>, ) -> Result<SelectOptionExtracted, Self::Error>

Performs the conversion.