pub struct StatsCollector { /* private fields */ }Expand description
Statistics collector for building CollectionStats.
Implementations§
Source§impl StatsCollector
impl StatsCollector
Sourcepub fn set_row_count(&mut self, count: u64)
pub fn set_row_count(&mut self, count: u64)
Sets row count
Sourcepub fn set_deleted_count(&mut self, count: u64)
pub fn set_deleted_count(&mut self, count: u64)
Sets deleted count
Sourcepub fn set_total_size(&mut self, size: u64)
pub fn set_total_size(&mut self, size: u64)
Sets total size
Sourcepub fn add_column_stats(&mut self, stats: ColumnStats)
pub fn add_column_stats(&mut self, stats: ColumnStats)
Adds column statistics
Sourcepub fn add_index_stats(&mut self, stats: IndexStats)
pub fn add_index_stats(&mut self, stats: IndexStats)
Adds index statistics
Sourcepub fn build_histogram(
&mut self,
column_name: &str,
values: &mut [f64],
num_buckets: usize,
)
pub fn build_histogram( &mut self, column_name: &str, values: &mut [f64], num_buckets: usize, )
Builds a histogram for a column from sampled values and stores it.
Called by Collection::analyze() for each Int, Float, and String column.
Uses HistogramBuilder to construct an equi-depth histogram, then attaches
it to the corresponding ColumnStats entry (creating one if absent).
Sourcepub fn build(self) -> CollectionStats
pub fn build(self) -> CollectionStats
Builds the final CollectionStats
Trait Implementations§
Source§impl Debug for StatsCollector
impl Debug for StatsCollector
Source§impl Default for StatsCollector
impl Default for StatsCollector
Source§fn default() -> StatsCollector
fn default() -> StatsCollector
Auto Trait Implementations§
impl Freeze for StatsCollector
impl RefUnwindSafe for StatsCollector
impl Send for StatsCollector
impl Sync for StatsCollector
impl Unpin for StatsCollector
impl UnsafeUnpin for StatsCollector
impl UnwindSafe for StatsCollector
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