Function CompareRowNumbers

pkg/parquetquery/iters.go:58–68

CompareRowNumbers compares the sequences of row numbers in a and b for partial equality, descending from top-level through the given definition level. For example, definition level 1 means that row numbers are compared at two levels of nesting, the top-level and 1 level of nesting below.

(upToDefinitionLevel int, a, b RowNumber)

// at two levels of nesting, the top-level and 1 level of nesting
// below.
func CompareRowNumbers(upToDefinitionLevel int, a, b RowNumber) int {
	for i := 0; i <= upToDefinitionLevel; i++ {
		if a[i] < b[i] {
			return -1
		}
		if a[i] > b[i] {
			return 1
		}
	}
	return 0
}

// EqualRowNumber compares the sequences of row numbers in a and b
// for partial equality. A little faster than CompareRowNumbers(d,a,b)==0