Statistics

aws_sdk_neptunedata::types

Struct Statistics 

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#[non_exhaustive]
pub struct Statistics {
    pub auto_compute: Option<bool>,
    pub active: Option<bool>,
    pub statistics_id: Option<String>,
    pub date: Option<DateTime>,
    pub note: Option<String>,
    pub signature_info: Option<StatisticsSummary>,
}
Expand description

Contains statistics information. The DFE engine uses information about the data in your Neptune graph to make effective trade-offs when planning query execution. This information takes the form of statistics that include so-called characteristic sets and predicate statistics that can guide query planning. See Managing statistics for the Neptune DFE to use.

Fields (Non-exhaustive)§

This struct is marked as 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.
§auto_compute: Option<bool>

Indicates whether or not automatic statistics generation is enabled.

§active: Option<bool>

Indicates whether or not DFE statistics generation is enabled at all.

§statistics_id: Option<String>

Reports the ID of the current statistics generation run. A value of -1 indicates that no statistics have been generated.

§date: Option<DateTime>

The UTC time at which DFE statistics have most recently been generated.

§note: Option<String>

A note about problems in the case where statistics are invalid.

§signature_info: Option<StatisticsSummary>

A StatisticsSummary structure that contains:

  • signatureCount - The total number of signatures across all characteristic sets.

  • instanceCount - The total number of characteristic-set instances.

  • predicateCount - The total number of unique predicates.

Implementations§

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impl Statistics

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pub fn auto_compute(&self) -> Option<bool>

Indicates whether or not automatic statistics generation is enabled.

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pub fn active(&self) -> Option<bool>

Indicates whether or not DFE statistics generation is enabled at all.

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pub fn statistics_id(&self) -> Option<&str>

Reports the ID of the current statistics generation run. A value of -1 indicates that no statistics have been generated.

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pub fn date(&self) -> Option<&DateTime>

The UTC time at which DFE statistics have most recently been generated.

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pub fn note(&self) -> Option<&str>

A note about problems in the case where statistics are invalid.

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pub fn signature_info(&self) -> Option<&StatisticsSummary>

A StatisticsSummary structure that contains:

  • signatureCount - The total number of signatures across all characteristic sets.

  • instanceCount - The total number of characteristic-set instances.

  • predicateCount - The total number of unique predicates.

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impl Statistics

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pub fn builder() -> StatisticsBuilder

Creates a new builder-style object to manufacture Statistics.

Trait Implementations§

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impl Clone for Statistics

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fn clone(&self) -> Statistics

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for Statistics

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

Formats the value using the given formatter. Read more
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impl PartialEq for Statistics

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

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

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