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From "Maxim Gekk (Jira)" <j...@apache.org>
Subject [jira] [Created] (SPARK-29395) Precision of the interval type
Date Tue, 08 Oct 2019 18:10:00 GMT
Maxim Gekk created SPARK-29395:
----------------------------------

             Summary: Precision of the interval type
                 Key: SPARK-29395
                 URL: https://issues.apache.org/jira/browse/SPARK-29395
             Project: Spark
          Issue Type: Sub-task
          Components: SQL
    Affects Versions: 3.0.0
            Reporter: Maxim Gekk


PostgreSQL allows to specify interval precision, see [https://www.postgresql.org/docs/12/datatype-datetime.html]
|{{interval [ _{{fields}}_ ] [ (_{{p}}_) ]}}|16 bytes|time interval|-178000000 years|178000000
years|1 microsecond|

For example:
{code}
maxim=# SELECT interval '1 2:03.4567' day to second(2);
     interval      
-------------------
 1 day 00:02:03.46
(1 row)
{code}



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