How to subtract month from Impala time stamp?

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In Impala, I used the select now() query to get the current timestamp and add_months(now(), 2) to add months to the timestamp. My question is, how can I subtract the month from the timestamp? I could not find any subtract_months() method. Please help.

Jun 6 in Big Data Hadoop by Jimmy
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You don't need another method, you can use the add_months method with a negative value to subtract month. You can try something like this:

select now(), add_months(now(), -1);
answered Jun 6 by Tina

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