Struct Col 

pub struct Col {
    pub src: String,
    pub out: String,
}

One output column: the key to read from the row, and the name to show.

The two differ for aggregates. NQL answers SUM(total) with a row holding sum_total (plus count and a legacy value alias), while SQL callers expect a single column called sum. Carrying both halves keeps NEDB’s internal key names off the wire — the first cut leaked ['count','value'] out of a SELECT COUNT(*), which is two columns where SQL promises one.

Fields

src: String

out: String

Trait Implementations

impl Clone for Col

fn clone(&self) -> Col

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Col

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

Formats the value using the given formatter.

impl PartialEq for Col

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Col