SKIP_SQL_REWRITE=true, invalid

[13302516724]

The number of shards in the table is 4, using USER-ID as the shard key

Logic SQL:
/* SHARDINGSPHERE_HINT: DISABLE_AUDIT_NAMES=sharding_key_required_auditor, SKIP_SQL_REWRITE=true */
SELECT * FROM T_ACCOUNT WHERE USERNAME=#{username} AND APP_ID = #{appId}

Actual SQL：
SELECT * FROM T_ACCOUNT WHERE USERNAME=#{username} AND APP_ID = #{appId}
UNION ALL
SELECT * FROM T_ACCOUNT WHERE USERNAME=#{username} AND APP_ID = #{appId}
UNION ALL
SELECT * FROM T_ACCOUNT WHERE USERNAME=#{username} AND APP_ID = #{appId}
UNION ALL
SELECT * FROM T_ACCOUNT WHERE USERNAME=#{username} AND APP_ID = #{appId}

How to effectively skip rewriting

expect
SELECT * FROM T_ACCOUNT WHERE USERNAME=#{username} AND APP_ID = #{appId}