Field-level metrics for a single column. More...

#include <metrics.h>

Public Attributes
int32_t	field_id = -1
	The field ID this metrics belongs to.

int64_t	value_count = -1
	The total number of values (including nulls) for this field. A negative value indicates the count is unknown.

int64_t	null_value_count = -1
	The number of null values for this field. A negative value indicates the count is unknown.

int64_t	nan_value_count = -1
	The number of NaN values for this field. A negative value indicates the count is unknown.

std::optional< Literal >	lower_bound = std::nullopt
	The lower bound value as a Literal. Empty if no lower bound is available.

std::optional< Literal >	upper_bound = std::nullopt
	The upper bound value as a Literal. Empty if no upper bound is available.

Detailed Description

Field-level metrics for a single column.

This structure captures value counts, null counts, NaN counts, and optional lower/upper bounds for a specific field identified by its field_id.

The documentation for this struct was generated from the following file:

Public Attributes