Struct mz_repr::explain_new::ExplainConfig

pub struct ExplainConfig {
    pub arity: bool,
    pub join_impls: bool,
    pub keys: bool,
    pub linear_chains: bool,
    pub non_negative: bool,
    pub no_fast_path: bool,
    pub raw_plans: bool,
    pub raw_syntax: bool,
    pub subtree_size: bool,
    pub timing: bool,
    pub types: bool,
}

A set of options for controlling the output of Explain implementations.

Fields

arity: bool

Show the number of columns.

join_impls: bool

Render implemented MIR Join nodes in a way which reflects the implementation.

keys: bool

Show the sets of unique keys.

linear_chains: bool

Restrict output trees to linear chains. Ignored if raw_plans is set.

non_negative: bool

Show the non_negative in the explanation if it is supported by the backing IR.

no_fast_path: bool

Show the slow path plan even if a fast path plan was created. Useful for debugging.

raw_plans: bool

Don’t normalize plans before explaining them.

raw_syntax: bool

Disable virtual syntax in the explanation.

subtree_size: bool

Show the subtree_size attribute in the explanation if it is supported by the backing IR.

timing: bool

Print optimization timings (currently unsupported).

types: bool

Show the type attribute in the explanation.

Implementations

impl ExplainConfig

pub fn requires_attributes(&self) -> bool

Trait Implementations

impl Clone for ExplainConfig

fn clone(&self) -> ExplainConfig

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ExplainConfig

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

Formats the value using the given formatter.

impl TryFrom<BTreeSet<String, Global>> for ExplainConfig

type Error = Error

The type returned in the event of a conversion error.

fn try_from(flags: BTreeSet<String>) -> Result<Self, Error>

Performs the conversion.