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Bridget Bevens commented on DRILL-3610: --------------------------------------- Hi [~vvysotskyi] On this page: https://drill.apache.org/docs/date-time-functions-and-arithmetic/ I added the following two sections: * [https://drill.apache.org/docs/date-time-functions-and-arithmetic/#timestampadd] * [https://drill.apache.org/docs/date-time-functions-and-arithmetic/#timestampdiff] For timestampadd, I did not include hour, minute, second, etc. time units because they did not work for me, as shown: SELECT TIMESTAMPADD(MINUTE,1,'2003-01-02'); Error: SYSTEM ERROR: AssertionError: Conversion to relational algebra failed to preserve datatypes: validated type: RecordType(TIMESTAMP(3) NOT NULL EXPR$0) NOT NULL converted type: RecordType(TIMESTAMP(0) NOT NULL EXPR$0) NOT NULL rel: LogicalProject(EXPR$0=[+('2003-01-02', *(60000, 1))]) LogicalValues(tuples=[[\{ 0 }]]) Please, refer to logs for more information. Please review and let me know if I need to make any changes to the doc. Thanks, Bridget > 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: Volodymyr Vysotskyi > Priority: Major > Labels: doc-impacting, ready-to-commit > Fix For: 1.15.0 > > > 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 (v7.6.3#76005)