Can anyone helpout with the TIMESTAMP literals piece. So far, I've gotten
Select day_timestamp from lu_day where day_timestamp >
to_utc_timestamp('2012-06-04 00:00:00', 'GMT') to work ok and give me back
timestamps greater than the one in the literal. Is this the best function to
get this to work or is there something else I should be using
From: Ladda, Anand
Sent: Monday, May 28, 2012 11:00 AM
To: [email protected]
Subject: RE: FW: Filtering on TIMESTAMP data type
Debarshi
Didn't quite follow your first comment. I get the write-your-own UDF part but
was wondering how others have been transitioning from STRING dates to TIMESTAMP
dates and getting filtering, partition pruning, etc to work with constants
-Anand
From: Debarshi Basak [mailto:[email protected]]
Sent: Saturday, May 26, 2012 11:54 AM
To: [email protected]<mailto:[email protected]>
Subject: Re: FW: Filtering on TIMESTAMP data type
I guess it exist gotta check.
btw...You can always go and write a udf
Debarshi Basak
Tata Consultancy Services
Mailto: [email protected]<mailto:[email protected]>
Website: http://www.tcs.com
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-----"Ladda, Anand" wrote: -----
To: "[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>,
"[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
From: "Ladda, Anand" <[email protected]<mailto:[email protected]>>
Date: 05/26/2012 06:58PM
Subject: FW: Filtering on TIMESTAMP data type
How do I set-up a filter constant for TIMESTAMP datatype. In Hive 0.7 since
timestamps were represented as strings a query like this would return data
select * from LU_day where day_date ='2010-01-01 00:00:00';
But now with day_date as a TIMESTAMP column it doesn't. Is there some type of a
TO_TIMESTAMP function in hive to convert the string constant into a TIMESTAMP
one
As a workaround I can do
select * from LU_DAY where TO_DATE(day_date) = '2010-01-01' but that would be a
problem for partitioning pruning, etc
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