profile

type Collector struct {
	// contains filtered or unexported fields
}

type Column struct {
	Name string
	// TopValues are the most frequent non-empty values, most frequent first.
	TopValues []ValueCount
	// NonEmpty counts the records where the attribute is present and neither null nor empty.
	NonEmpty int64
	// Pct is NonEmpty as a percentage (0–100) of all records.
	Pct float64
	// Distinct is how many distinct non-empty values were counted; a lower bound when
	// DistinctExact is false.
	Distinct int64
	// DistinctExact is false once any worker exceeded Config.MaxDistinct for this attribute:
	// TopValues counts are then estimates (see ValueCount.MaxError) and Distinct a lower bound.
	DistinctExact bool
}

type Config struct {
	// Columns, when non-empty, restricts the profile to these attribute paths and everything
	// nested under them.
	Columns []string
	// TopN is how many most-frequent values to keep per attribute.
	TopN int
	// MaxDistinct is how many distinct values each decode worker tracks per attribute exactly,
	// before it falls back to approximate heavy-hitter counting.
	MaxDistinct int
}

type Profile struct {
	Columns []Column
	Records int64
	// ColumnsTruncated is true when more than MaxColumns attribute paths were seen and the rest
	// were left out.
	ColumnsTruncated bool
}

type Set struct {
	// contains filtered or unexported fields
}

type ValueCount struct {
	Value string
	Count int64
	// MaxError bounds how far Count may be from the true count; zero when the column is exact.
	MaxError int64
	// Pct is Count as a percentage (0–100) of all records.
	Pct float64
}