sql - How to convert TIMESTAMPS formats to be compatible with Impala -


here sample of data in csv format:

6/30/2014 23:57,2006,604,131 7/1/2014 0:24,2217,263,143 6/30/2014 23:26,173,3481,134 ...

i load csv file in impala table , have first column "timestamp":

create table my_table(col1 timestamp, col2 int, col3 int, col4 int)   row format delimited   fields terminated ',';  load data inpath '/dataset/data' table my_table;

but impala accepts timestamps following format: 

yyyy-mm-dd hh:mm:ss.sssssssss

while data is: 

mm/dd/yyyy hh:mm

how can convert data in fastest way readable impala timestamps? trying use regexp_replace not quite successful make regular expression.

the from_unixtime(unix_timestamp( timestamp, 'input_format' )) solution work hive, but, whatever reason, not work impala. consider bug , recommend submit cloudera.


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