Function ParseDBool

pkg/sql/sem/tree/datum.go:273–314

ParseDBool parses and returns the *DBool Datum value represented by the provided string, or an error if parsing is unsuccessful. See https://github.com/postgres/postgres/blob/90627cf98a8e7d0531789391fd798c9bfcc3bc1a/src/backend/utils/adt/bool.c#L36

(s string)

// string, or an error if parsing is unsuccessful.
// See https://github.com/postgres/postgres/blob/90627cf98a8e7d0531789391fd798c9bfcc3bc1a/src/backend/utils/adt/bool.c#L36
func ParseDBool(s string) (*DBool, error) {
	s = strings.TrimSpace(s)
	if len(s) >= 1 {
		switch s[0] {
		case 't', 'T':
			if isCaseInsensitivePrefix(s, "true") {
				return DBoolTrue, nil
			}
		case 'f', 'F':
			if isCaseInsensitivePrefix(s, "false") {
				return DBoolFalse, nil
			}
		case 'y', 'Y':
			if isCaseInsensitivePrefix(s, "yes") {
				return DBoolTrue, nil
			}
		case 'n', 'N':
			if isCaseInsensitivePrefix(s, "no") {
				return DBoolFalse, nil
			}
		case '1':
			if s == "1" {
				return DBoolTrue, nil
			}
		case '0':
			if s == "0" {
				return DBoolFalse, nil
			}
		case 'o', 'O':
			// Just 'o' is ambiguous between 'on' and 'off'.
			if len(s) > 1 {
				if isCaseInsensitivePrefix(s, "on") {
					return DBoolTrue, nil
				}
				if isCaseInsensitivePrefix(s, "off") {
					return DBoolFalse, nil
				}
			}
		}
	}
	return nil, makeParseError(s, types.Bool, pgerror.New(pgcode.InvalidTextRepresentation, "invalid bool value"))
}

// ParseDByte parses a string representation of hex encoded binary
// data. It supports both the hex format, with "\x" followed by a