Struct AggregateExpr 

pub struct AggregateExpr {
    pub function: String,
    pub args: Vec<SqlExpr>,
    pub alias: String,
    pub distinct: bool,
    pub grouping_col_index: Option<usize>,
}

Aggregate expression: COUNT(*), SUM(amount), etc.

Fields

function: String

args: Vec<SqlExpr>

alias: String

distinct: bool

grouping_col_index: Option<usize>

For the synthetic GROUPING(col) pseudo-aggregate: the index of col in the canonical group-by key list. The executor uses this index to read the grouping-set bitmask and return 0 (present) or 1 (NULL-filled). None for all ordinary aggregate functions.

Trait Implementations

impl Clone for AggregateExpr

fn clone(&self) -> AggregateExpr

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AggregateExpr

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

Formats the value using the given formatter.