Convert 2016-08-27 string to date in hive -

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i using code below convert date format output null.

select from_unixtime(unix_timestamp(b.temp,'yyyymmdd'), 'yyyymmdd') temp1  ([![enter image description here][1]][1] select a.*, regexp_replace(a.ao_date,'-','') temp clla_samp_base ) b ;

any appreciated!

2016-08-27 in iso date format date format acceptable hive "as is".

hive> select cast ('2016-08-27' date) dt;  ok dt 2016-08-27

p.s.
if have column containning values in format, can define column type date in first place.


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