Bad status request on Impala - sql

Question

Bad status for request 37563: TGetOperationStatusResp(status=TStatus(errorCode=None, errorMessage=None, sqlState=None, infoMessages=None, statusCode=0), operationState=5, errorMessage=None, sqlState=None, errorCode=None)
I am facing this when i tried to run the following query.
refresh sst_spot_quotes;
select
case
when maxrecordforSST >= hours_sub (CURRENT_TIMESTAMP(), 4) then ''
else 'error'
end as msg
from
(
select
to_timestamp (
CONCAT (
max(rdate),
MAX(
CONCAT (
LPAD (CAST(rhour as STRING), 2, '0'),
':',
LPAD (CAST(rminute as STRING), 2, '0'),
':',
LPAD (CAST(rsecond as STRING), 2, '0')
)
)
),
'yyyy-mmm-ddhh:mm:ss'
) as maxrecordforSST
from
sst_spot_quotes
where
rdate >= days_sub (to_date (CURRENT_TIMESTAMP()), 1)
) a
Could someone help to resolve this error.

Answer 1

The date format must be yyyy-MMM-ddhh:mm:ss. Pls note i made MMM as uppercase.
Could you please change and try?
Also, its not a good idea to get the max and then to_timestamp but reverse. Because calculating max on date will give correct maximum date than string.
You can give below SQL a try.
select
case
when maxrecordforSST >= hours_sub (CURRENT_TIMESTAMP(), 4) then ''
else 'error'
end as msg
from
(
select
MAX(to_timestamp (
CONCAT (
(rdate),
(
CONCAT (
LPAD (CAST(rhour as STRING), 2, '0'),
':',
LPAD (CAST(rminute as STRING), 2, '0'),
':',
LPAD (CAST(rsecond as STRING), 2, '0')
)
)
),
'yyyy-MMM-ddhh:mm:ss'
)) as maxrecordforSST
from
sst_spot_quotes
where
rdate >= days_sub (to_date (CURRENT_TIMESTAMP()), 1)
) a