Function ParseDIntervalWithTypeMetadata

postgres/parser/sem/tree/datum.go:1182–1189

ParseDIntervalWithTypeMetadata is like ParseDInterval, but it also takes a types.IntervalTypeMetadata that both specifies the units for unitless, numeric intervals and also specifies the precision of the interval.

(s string, itm types.IntervalTypeMetadata)

// types.IntervalTypeMetadata that both specifies the units for unitless, numeric intervals
// and also specifies the precision of the interval.
func ParseDIntervalWithTypeMetadata(s string, itm types.IntervalTypeMetadata) (*DInterval, error) {
	d, err := parseDInterval(s, itm)
	if err != nil {
		return nil, err
	}
	truncateDInterval(d, itm)
	return d, nil
}

func parseDInterval(s string, itm types.IntervalTypeMetadata) (*DInterval, error) {
	// At this time the only supported interval formats are: