Struct MetricSeries 

pub struct MetricSeries {
    pub series_id: u64,
    pub category: MetricCategory,
    pub name: String,
    pub target: String,
    pub static_tags: StaticTags,
    pub description: Option<String>,
    pub created_at: DateTime<Utc>,
    pub updated_at: DateTime<Utc>,
}

Metric series (dimension table).

Stores static metadata that identifies a unique metric series. The series_id is computed as xxhash64 of (category, name, target, sorted_static_tags).

Deduplication

Series are deduplicated using INSERT OR REPLACE on series_id. When a duplicate series is inserted, only updated_at and description are refreshed.

Fields

series_id: u64

Unique identifier: xxhash64(category|name|target|sorted_static_tags).

category: MetricCategory

Metric category.

name: String

Metric name (e.g., “latency”, “price”).

target: String

Target identifier (e.g., “127.0.0.1:6379”, “BTC/USD”).

static_tags: StaticTags

Static tags for identity (e.g., {“host”: “prod-1”, “region”: “us-west”}).

description: Option<String>

Human-readable description.

created_at: DateTime<Utc>

First seen timestamp.

updated_at: DateTime<Utc>

Last updated timestamp.

Implementations

impl MetricSeries

pub fn compute_series_id( category: MetricCategory, name: &str, target: &str, static_tags: &StaticTags, ) -> u64

Compute series_id from category, name, target, and static_tags.

Formula: xxhash64(“category|name|target|k1=v1,k2=v2,…”) Tags are sorted by key for consistent hashing.

pub fn new( category: MetricCategory, name: impl Into<String>, target: impl Into<String>, static_tags: StaticTags, description: Option<String>, ) -> Self

Create a new MetricSeries with computed series_id.

Trait Implementations

impl Clone for MetricSeries

fn clone(&self) -> MetricSeries

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MetricSeries

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for MetricSeries

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for MetricSeries

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.