使用sqoop导入到hdfs时，如何在Postgres中更改列的类型？

Question

I have a column in Postgres database with a type timestamp without timezone. How do I convert it into timestamp with timezone(UTC) while importing into hdfs using sqoop?

Answer 1

You can specify the query rather than table in your sqoop import statement.

 sqoop import --connect xxx,DATABASE=xxx
 ---driver xxx --username xxx --password xxx 
 --query 'select * from xxx' 
 --target-dir <hdfs-location> ...

Here is how you can convert from timestamp without timezone to timezone(UTC)

SELECT '2011-01-01 00:00:00'::TIMESTAMP WITH TIME ZONE;

You can refer this link : Difference between timestamps with/without time zone in PostgreSQL