Struct mz_storage_client::source::persist_source::PersistSourceDataStatsImpl

pub(crate) struct PersistSourceDataStatsImpl<'a> {
    pub(crate) desc: &'a RelationDescHack,
    pub(crate) stats: &'a PartStats,
}

Fields

desc: &'a RelationDescHack

stats: &'a PartStats

Implementations

impl PersistSourceDataStatsImpl<'_>

fn json_spec(stats: &JsonStats) -> ResultSpec<'_>

fn col_json<'a>(&'a self, idx: usize, _arena: &'a RowArena) -> ResultSpec<'a>

Trait Implementations

impl<'a> Debug for PersistSourceDataStatsImpl<'a>

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

Formats the value using the given formatter.

impl PersistSourceDataStats for PersistSourceDataStatsImpl<'_>

fn len(&self) -> Option<usize>

The number of updates (Rows + errors) in the part.

fn err_count(&self) -> Option<usize>

The number of errors in the part.

fn col_min<'a>(&'a self, idx: usize, arena: &'a RowArena) -> Option<Datum<'a>>

The part’s minimum value for the named column, if available. A return value of None indicates that Persist did not / was not able to calculate a minimum for this column.

fn col_max<'a>(&'a self, idx: usize, arena: &'a RowArena) -> Option<Datum<'a>>

(ditto above, but for the maximum column value)

fn col_null_count(&self, idx: usize) -> Option<usize>

The part’s null count for the named column, if available. A return value of None indicates that Persist did not / was not able to calculate the null count for this column.

fn row_min(&self, _row: &mut Row) -> Option<usize>

A prefix of column values for the minimum Row in the part. A return of None indicates that Persist did not / was not able to calculate the minimum row. A Some(usize) indicates how many columns are in the prefix. The prefix may be less than the full row if persist cannot determine/store an individual column, for the same reasons that col_min/col_max may omit values.

fn row_max(&self, _row: &mut Row) -> Option<usize>

(ditto above, but for the maximum row)