Enum MetricType 

pub enum MetricType {
    SUMMARY,
    DEV,
}

Categorizes metrics so the display layer can choose the desired verbosity.

How is it used:

The datafusion.explain.analyze_level configuration controls which category is shown.

• When set to dev, all metrics with type MetricType::Summary or MetricType::DEV will be shown.
• When set to summary, only metrics with type MetricType::Summary are shown.

Difference from EXPLAIN ANALYZE VERBOSE:

The VERBOSE keyword controls whether per-partition metrics are shown (when specified),
or aggregated metrics are displayed (when omitted).
In contrast, the analyze_level configuration determines which categories or levels of metrics are displayed.

Variants

SUMMARY

Common metrics for high-level insights (answering which operator is slow)

DEV

For deep operator-level introspection for developers

Trait Implementations

impl Clone for MetricType

fn clone(&self) -> MetricType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MetricType

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

Formats the value using the given formatter.

impl Hash for MetricType

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for MetricType

fn eq(&self, other: &MetricType) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for MetricType

impl Eq for MetricType

impl StructuralPartialEq for MetricType