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【DM版本】:dm8
【操作系统】：Ubuntu 18.04.5 LTS x86_64
【CPU】: Intel
【问题描述】*：使用merge into进行批量操作提示：SQL 错误 [22000]: 无法在源表中获得一组稳定的行

MERGE
INTO
	INCEPTION_RBAC.user_used_project t1
		USING (
	SELECT
		'ddc56cdb-e034-4857-bc93-edb579d27b07' AS user_id,
		'395fa74a-e5f7-4b07-b72f-be8d613fd54e' AS tenant_id,
		2000 AS project_id,
		'2023-05-26 17:09:38.439' AS used_time
UNION ALL
	SELECT
		'ddc56cdb-e034-4857-bc93-edb579d27b07' AS user_id,
		'395fa74a-e5f7-4b07-b72f-be8d613fd54e' AS tenant_id,
		2000 AS project_id,
		'2023-05-26 17:09:38.439' AS used_time
		) t2 ON
	(t1.user_id = t2.user_id
		AND t1.project_id = t2.project_id)
	WHEN MATCHED THEN
UPDATE
SET
	t1.tenant_id = t2.tenant_id,
	t1.used_time = t2.used_time
	WHEN NOT MATCHED THEN
INSERT
	(user_id,
	tenant_id,
	project_id,
	used_time)
VALUES (t2.user_id,
t2.tenant_id,
t2.project_id,
t2.used_time);

错误：
SQL 错误 [22000]: 无法在源表中获得一组稳定的行