Module datafusion_expr::type_coercion::aggregates

Statics

• DATES
• INTEGERS
• NUMERICS
• SIGNED_INTEGERS
• STRINGS
• TIMES
• TIMESTAMPS
• UNSIGNED_INTEGERS

Functions

• avg_return_type
  function return type of an average
• avg_sum_type
  internal sum 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_bit_and_or_xor_support_arg_type
• is_bool_and_or_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