Struct ColumnInfo 

pub struct ColumnInfo {
    pub name: String,
    pub dtype: ColumnDtype,
    pub null_count: u64,
}

Per-column schema fact reported by DataStore::ingest_csv.

Fields

name: String

The literal column name (taken verbatim from the CSV header — spaces and punctuation survive because identifiers are quoted, never rejected).

dtype: ColumnDtype

The inferred storage dtype.

null_count: u64

How many cells in this column were empty (stored as NULL).

Trait Implementations

impl Clone for ColumnInfo

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnInfo

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ColumnInfo

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for ColumnInfo

impl PartialEq for ColumnInfo

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

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for ColumnInfo

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ColumnInfo