Hive - select rows within 1 year of earliest date - sql

Question

I am trying to select all rows in a table that are within 1 year of the earliest date in the table. I'm using the following code:
select *
from baskets a
where activitydate < (select date_add((select min(activitydate) mindate_a from baskets), 365) date_b from baskets)
limit 10;
but get the following error message:
Error while compiling statement: FAILED: ParseException line 1:55 cannot recognize input near 'select' 'date_add' '(' in expression specification
Total execution time: 00:00:00.338
Any suggestions?
EDIT:
With this code:
select *
from baskets a
where activitydate < (select date_add(min(activitydate), 365) from baskets)
limit 10;
I'm getting this error:
Error while compiling statement: FAILED: ParseException line 1:55 cannot recognize input near 'select' 'date_add' '(' in expression specification

Answer 1

I'd be tempted to use window functions:
select b.*
from (select b.*, min(activity_date) as min_ad
from baskets b
) b
where activity_date < add_months(min_ad, 12);
If you really want your syntax to work, try reducing the number of selects:
where activitydate < (select date_add(min(activitydate), 365) from baskets)

Answer 2

Use JOINs instead of select in Sub-query. I don't think Hive supports select in where clause with < condition. Only IN and EXISTS could be used as of Hive 0.13.
: Language Manual SubQueries
SELECT a.*
FROM baskets a
JOIN (SELECT DATE_ADD(MIN(b.activitydate), 365) maxdate
FROM baskets) b
ON a.activitydate < b.maxdate
LIMIT 10;