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https://issues.apache.org/jira/browse/DRILL-3610?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16731221#comment-16731221
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Volodymyr Vysotskyi commented on DRILL-3610:
--------------------------------------------
Hi, [~bbevens],
Sorry for being picky, there is one more place to clarify: in the examples of
usage for both {{TIMESTAMPADD}} and {{TIMESTAMPDIFF}} was used CSV table:
{code:sql}
SELECT TIMESTAMPADD(QUARTER, 1, COLUMNS[0]) q1 FROM dfs.`/quarter/dates.csv`;
{code}
But {{COLUMNS[0]}} has varchar type and {{TIMESTAMPADD}} requires
date/time/timstamp types. Could you please add a cast to date for these
examples?
{code:sql}
SELECT TIMESTAMPADD(QUARTER, 1, CAST(COLUMNS[0] as date)) q1 FROM
dfs.`/quarter/dates.csv`;
{code}
Thanks in advance!
> 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-complete, 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`
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