GAUSS-01437：one or two argument types must be specified SQLSTATE: 42601
错误码
错误描述：one or two argument types must be specified SQLSTATE: 42601
错误原因：CREATE OPERATOR CLASS、ALTER OPERATOR FAMILY … ADD/DROP中指定的OPERATOR/FUNCTION参数超过了2个。
解决方法：CREATE OPERATOR CLASS、ALTER OPERATOR FAMILY … ADD/DROP中指定的OPERATOR/FUNCTION参数只能是1个或者2个。
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