Method parseReferentialActions

pkg/sql/parser/ddl_columns.go:293–308

parseReferentialActions parses ON DELETE and ON UPDATE actions

()

// parseReferentialActions parses ON DELETE and ON UPDATE actions
func (p *Parser) parseReferentialActions() (onDelete, onUpdate string) {
	for p.isType(models.TokenTypeOn) {
		p.advance() // Consume ON

		if p.isType(models.TokenTypeDelete) {
			p.advance() // Consume DELETE
			onDelete = p.parseReferentialAction()
		} else if p.isType(models.TokenTypeUpdate) {
			p.advance() // Consume UPDATE
			onUpdate = p.parseReferentialAction()
		} else {
			break
		}
	}
	return
}

// parseReferentialAction parses a single referential action (CASCADE, SET NULL, etc.)
func (p *Parser) parseReferentialAction() string {