odoo13 字段約束報錯，原因：版本改動導致

_sql_constraints = [
        ('partner_tax_rate_check', 'check(0 <=tax_rate<= 100)', '稅率必須在0-100（%）之間!'),
    ]

 提示錯誤

語法錯誤 在 "<=" 或附近的 LINE 1: ...es_partner_partner_tax_rat

把 check(0 <=tax_rate<= 100) 拆開，改爲   check(0 <=tax_rate and tax_rate <= 100)

_sql_constraints = [
        ('partner_tax_rate_check', 'check(0 <=tax_rate and tax_rate<= 100)', '稅率必須在0-100（%）之間!'),
    ]