Greg Rahn created IMPALA-5317:
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Summary: add DATE_TRUNC() function
Key: IMPALA-5317
URL: https://issues.apache.org/jira/browse/IMPALA-5317
Project: IMPALA
Issue Type: New Feature
Components: Frontend
Reporter: Greg Rahn
date_trunc('field', timestamp) timestamp
Valid values for field are:
* microseconds
* milliseconds
* second
* minute
* hour
* day
* week
* month
* quarter
* year
* decade
* century
* millennium
References:
*
https://my.vertica.com/docs/8.1.x/HTML/index.htm#Authoring/SQLReferenceManual/Functions/Date-Time/DATE_TRUNC.htm
*
https://www.postgresql.org/docs/current/static/functions-datetime.html#FUNCTIONS-DATETIME-TRUNC
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