Function filterOverloads

pkg/sql/sem/tree/overload.go:763–775

filterOverloads filters overloads which do not satisfy the predicate.

(
	overloads []overloadImpl, overloadIdxs []uint8, fn func(overloadImpl) bool,
)

// filterOverloads filters overloads which do not satisfy the predicate.
func filterOverloads(
	overloads []overloadImpl, overloadIdxs []uint8, fn func(overloadImpl) bool,
) []uint8 {
	for i := 0; i < len(overloadIdxs); {
		if fn(overloads[overloadIdxs[i]]) {
			i++
		} else {
			overloadIdxs[i], overloadIdxs[len(overloadIdxs)-1] = overloadIdxs[len(overloadIdxs)-1], overloadIdxs[i]
			overloadIdxs = overloadIdxs[:len(overloadIdxs)-1]
		}
	}
	return overloadIdxs
}

// defaultTypeCheck type checks the constant and placeholder expressions without a preference
// and adds them to the type checked slice.