Struct AggCall

pub struct AggCall {
    pub agg_type: AggType,
    pub args: AggArgs,
    pub return_type: DataType,
    pub column_orders: Vec<ColumnOrder>,
    pub filter: Option<Arc<dyn Expression>>,
    pub distinct: bool,
    pub direct_args: Vec<LiteralExpression>,
}

Represents an aggregation function.

Fields

agg_type: AggType

Aggregation type for constructing agg state.

args: AggArgs

Arguments of aggregation function input.

return_type: DataType

The return type of aggregation function.

column_orders: Vec<ColumnOrder>

Order requirements specified in order by clause of agg call

filter: Option<Arc<dyn Expression>>

Filter of aggregation.

distinct: bool

Should deduplicate the input before aggregation.

direct_args: Vec<LiteralExpression>

Constant arguments.

Implementations

impl AggCall

pub fn from_protobuf(agg_call: &PbAggCall) -> Result<Self>

pub fn from_pretty(s: impl AsRef<str>) -> Self

Build an AggCall from a string.

Syntax

(<name>:<type> [<index>:<type>]* [distinct] [orderby [<index>:<asc|desc>]*])

pub fn with_filter(self, filter: BoxedExpression) -> Self

Trait Implementations

impl Clone for AggCall

fn clone(&self) -> AggCall

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for AggCall

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

Formats the value using the given formatter.