Struct mz_expr::explain::text::HumanizedExplain

pub struct HumanizedExplain(bool);

A HumanizerMode that is unambiguous and should be used in EXPLAIN output.

The inner parameter is true iff literals should be redacted.

Tuple Fields

0: bool

Implementations

impl HumanizedExplain

pub fn seq<'i, T>( &self, exprs: &'i [T], cols: Option<&'i Vec<String>>, ) -> impl Iterator<Item = HumanizedExpr<'i, T, Self>> + Clone

Trait Implementations

impl Clone for HumanizedExplain

fn clone(&self) -> HumanizedExplain

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for HumanizedExplain

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

Formats the value using the given formatter.

impl HumanizerMode for HumanizedExplain

fn humanize_ident(col: usize, ident: Ident, f: &mut Formatter<'_>) -> Result

Write #c{ident}.

fn new(redacted: bool) -> Self

Create a new instance of the optimizer mode with literal redaction determined by the redacted parameter value.

fn redacted(&self) -> bool

Return true iff literal redaction is enabled for this mode.

fn default() -> Self

Default implementation of a default constructor.

fn expr<'a, T>( &self, expr: &'a T, cols: Option<&'a Vec<String>>, ) -> HumanizedExpr<'a, T, Self>

Factory method that wraps the given expr and cols into a HumanizedExpr with the current mode.

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

Render a literal datum.