Nikita Pande created PHOENIX-7205:
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             Summary: Support DAYS operator as built in functions
                 Key: PHOENIX-7205
                 URL: https://issues.apache.org/jira/browse/PHOENIX-7205
             Project: Phoenix
          Issue Type: Sub-task
            Reporter: Nikita Pande


DAYS: [https://www.ibm.com/docs/en/db2-for-zos/12?topic=functions-days]

{*}Description{*}: The DAYS function converts each date to a number (the number 
of days
since '0001-01-01'), and subtracting these numbers gives the number of days 
between
the two dates. o/p is *364* since 2022 is not a leap year
{*}Example{*}:
{code:java}
SELECT (DAYS('2022-12-31') - DAYS('2022-01-01')) AS days_difference FROM 
sysibm.sysdummy1;
      {code}



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