Struct IndexAdvice 

#[non_exhaustive]
pub struct IndexAdvice {
    pub ddl: Vec<String>,
    pub improvement_factor: f64,
    /* private fields */
}

Recommendation to add new indexes to run queries more efficiently.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

ddl: Vec<String>

Optional. DDL statements to add new indexes that will improve the query.

improvement_factor: f64

Optional. Estimated latency improvement factor. For example if the query currently takes 500 ms to run and the estimated latency with new indexes is 100 ms this field will be 5.

Implementations

impl IndexAdvice

pub fn new() -> Self

Creates a new default instance.

pub fn set_ddl<T, V>(self, v: T) -> Self

where T: IntoIterator<Item = V>, V: Into<String>,

Sets the value of ddl.

pub fn set_improvement_factor<T: Into<f64>>(self, v: T) -> Self

Sets the value of improvement_factor.

Trait Implementations

impl Clone for IndexAdvice

fn clone(&self) -> IndexAdvice

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IndexAdvice

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

Formats the value using the given formatter.

impl Default for IndexAdvice

fn default() -> IndexAdvice

Returns the “default value” for a type.

impl Message for IndexAdvice

fn typename() -> &'static str

The typename of this message.

impl PartialEq for IndexAdvice

fn eq(&self, other: &IndexAdvice) -> 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 StructuralPartialEq for IndexAdvice