Throw Exception "converting driver.Value type float64 ("-0.034224987") to a int64 " when select data from predictions in notebook

[BlackPoint-CX]

Description
Throw Exception "converting driver.Value type float64 ("-0.034224987") to a int64 " when select data from predictions in notebook.

Reproduction Steps
Train Step

%%sqlflow
SELECT *
FROM datamap_test.ds_xgboost_train
TRAIN xgboost.REGRESSOR
WITH
    train.verbosity = 2,
    train.num_round = 50,
    train.subsample = 1
COLUMN COL_1, COL_2, COL_3
LABEL GOAL_1
INTO datamap_test.ds_xgboost_model ;

Predict

%%sqlflow 
SELECT *
FROM datamap_test.ds_xgboost_test
PREDICT ds_xgboost_predict.GOAL_1
WITH
	pred.append_columns = [COL_1, COL_2, COL_3]
USING datamap_test.ds_xgboost_model;

Select Prediction

%%sqlflow
SELECT *
FROM datamap_test.ds_xgboost_predict
LIMIT 5 ;

This SELECT works in HiveCLI. However when running it in notebook, it thrown exception like following .

_Rendezvous: <_Rendezvous of RPC that terminated with:
	status = StatusCode.UNKNOWN
	details = "sql: Scan error on column index 57, name "ds_xgboost_predict.duration": converting driver.Value type float64 ("-0.034224987") to a int64: invalid syntax"
	debug_error_string = "{"created":"@1567508579.253829853","description":"Error received from peer ipv4:127.0.0.1:50051","file":"src/core/lib/surface/call.cc","file_line":1041,"grpc_message":"sql: Scan error on column index 57, name "ds_xgboost_predict.GOAL_1": converting driver.Value type float64 ("-0.034224987") to a int64: invalid syntax","grpc_status":2}"

Expected Behavior

Screenshots

Environment (Please complete the following information):

• OS:
• Browser:
• Version: based on commit 9a0dc86 refine code structure for expression resolver (#760)

Additional Notes

[Yancey0623]

Maybe you can show the result of desc datamap_test.ds_xgboost_predict and select * from datamap_test.ds_xgboost_predict in beeline CLI?

[BlackPoint-CX]

Maybe you can show the result of desc datamap_test.ds_xgboost_predict and select * from datamap_test.ds_xgboost_predict in beeline CLI?

[Yancey0623]

It seems a bug of gohive package, I fixed it by sql-machine-learning/gohive#54 .

[tonyyang-svail]

@Yancey1989 @BlackPoint-CX Has this issue been fixed? If so, please close it.