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Daniel Barclay (Drill) commented on DRILL-3610: ----------------------------------------------- Standard SQL already defines addition and subtraction operations on valid combinations of timestamps (and other datetime) types and intervals (see ISO/IEC 9075-2:2011(E) section 4.6.4). Do the functions requested above provide functionality that the standard operations do not provide? > TimestampAdd/Diff (SQL_TSI_) functions > -------------------------------------- > > Key: DRILL-3610 > URL: https://issues.apache.org/jira/browse/DRILL-3610 > Project: Apache Drill > Issue Type: Improvement > Components: Functions - Drill > Reporter: Andries Engelbrecht > Assignee: Mehant Baid > > Add TimestampAdd and TimestampDiff (SQL_TSI) functions for year, quarter, > month, week, day, hour, minute, second. > Examples > SELECT CAST(TIMESTAMPADD(SQL_TSI_QUARTER,1,Date('2013-03-31'), SQL_DATE) AS > `column_quarter` > FROM `table_in` > HAVING (COUNT(1) > 0) > SELECT `table_in`.`datetime` AS `column1`, > `table`.`Key` AS `column_Key`, > TIMESTAMPDIFF(SQL_TSI_MINUTE,to_timestamp('2004-07-04', > 'yyyy-MM-dd'),`table_in`.`datetime`) AS `sum_datediff_minute` > FROM `calcs` -- This message was sent by Atlassian JIRA (v6.3.4#6332)