Struct Opts 

pub struct Opts {
    pub exec: JoinExec,
    pub pushdown: bool,
    pub fuse_filter: bool,
}

Execution options. Every switch exists so a differential test can run the SAME query with the optimisation on and off and compare — without that, a test believing it exercised an optimisation could be measuring the unoptimised path, and the equivalence suite would prove nothing.

Fields

exec: JoinExec

pushdown: bool

fuse_filter: bool

Evaluate the WHERE clause inside the final join rather than as a separate pass. Semantically identical; it is what lets the row budget apply to a filtered join.

Implementations

impl Opts

pub fn exec(exec: JoinExec) -> Opts

Trait Implementations

impl Clone for Opts

fn clone(&self) -> Opts

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Opts

impl Debug for Opts

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

Formats the value using the given formatter.

impl Default for Opts

fn default() -> Opts

Returns the “default value” for a type.