Struct SamplingConfig 

pub struct SamplingConfig {
    pub strategy: SamplingStrategy,
    pub sample_size: usize,
    pub seed: Option<u64>,
    pub stratify_column: Option<String>,
}

Configuration for database table sampling

Fields

strategy: SamplingStrategy

Sampling strategy to use

sample_size: usize

Target sample size (number of rows)

seed: Option<u64>

Random seed for reproducible sampling (optional)

stratify_column: Option<String>

Whether to stratify sampling by a column (optional)

Implementations

impl SamplingConfig

pub fn quick_sample(sample_size: usize) -> Self

Create a new sampling config for quick analysis

pub fn representative_sample( sample_size: usize, stratify_column: Option<String>, ) -> Self

Create a config for representative sampling

pub fn temporal_sample(sample_size: usize, time_column: String) -> Self

Create a config for temporal data sampling

pub fn generate_sample_query( &self, base_query: &str, total_rows: u64, ) -> Result<String, DataProfilerError>

Generate the appropriate SQL sampling query

Trait Implementations

impl Clone for SamplingConfig

fn clone(&self) -> SamplingConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SamplingConfig

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

Formats the value using the given formatter.

impl Default for SamplingConfig

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for SamplingConfig

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for SamplingConfig

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

where __S: Serializer,

Serialize this value into the given Serde serializer.