jdbc-grpc-client/src/main/java/org/apache/kyuubi/grpc/client/SimpleBlockingJdbcClient.java [272:280]:
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      .build();
    RollbackReq req = RollbackReq.newBuilder()
      .setConnectionId(ConnectionHandle.newBuilder().setId(connectionId).build())
      .setSavepoint(sp)
      .build();
    return connectionBlockingStub.rollback(req);
  }

  @Override
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jdbc-grpc-client/src/main/java/org/apache/kyuubi/grpc/client/SimpleBlockingJdbcClient.java [297:305]:
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      .build();
    RollbackReq req = RollbackReq.newBuilder()
      .setConnectionId(ConnectionHandle.newBuilder().setId(connectionId).build())
      .setSavepoint(sp)
      .build();
    return connectionBlockingStub.rollback(req);
  }

  @Override
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