[ https://issues.apache.org/jira/browse/CALCITE-1312?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Julian Hyde updated CALCITE-1312: --------------------------------- Summary: Return type of TIMESTAMP_ADD applied to a DATE should be TIMESTAMP if unit is smaller than DAY (was: timestamp_add(UNIT, DATE) should return timestamp if the unit added is less than a date, timestamp_diff should handle null dates) > Return type of TIMESTAMP_ADD applied to a DATE should be TIMESTAMP if unit is > smaller than DAY > ---------------------------------------------------------------------------------------------- > > Key: CALCITE-1312 > URL: https://issues.apache.org/jira/browse/CALCITE-1312 > Project: Calcite > Issue Type: Bug > Components: core > Reporter: MinJi Kim > Assignee: Julian Hyde > > timestamp_add("MINUTE", 1, date '2016-06-15') returns 2016-06-15 since it > returns a date and therefore truncates the minute informtion. timestamp_add > should return timestamp instead of date for units less than date. > timestamp_diff with date doesn't handle null properly (in type inference), > converted type is INTEGER NOT NULL (when it should be null). -- This message was sent by Atlassian JIRA (v6.3.4#6332)