function return type of an average

coerce_types

Returns the coerced data type for each input_types. Different aggregate function with different input data type will get corresponding coerced data type.

correlation_return_type

function return type of correlation

covariance_return_type

function return type of covariance

is_approx_percentile_cont_supported_arg_type

Return true if arg_type is of a [DataType] that the AggregateFunction::ApproxPercentileCont aggregation can operate on.

is_avg_support_arg_type

is_correlation_support_arg_type

is_covariance_support_arg_type

is_integer_arg_type

is_stddev_support_arg_type

is_sum_support_arg_type

is_variance_support_arg_type

stddev_return_type

function return type of standard deviation

sum_return_type

function return type of a sum

variance_return_type

function return type of variance

Module datafusion_expr::type_coercion::aggregates

Statics

Functions