[
https://issues.apache.org/jira/browse/FLINK-6813?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
sunjincheng updated FLINK-6813:
-------------------------------
Description:
* Syntax
TIMESTAMPDIFF ( datepart , startdate , enddate )
-datepart
Is the part of startdate and enddate that specifies the type of boundary
crossed.
-startdate
Is an expression that can be resolved to a time, date.
-enddate
Same with startdate.
* Example
SELECT TIMESTAMPDIFF(year, '2015-12-31 23:59:59.9999999', '2017-01-01
00:00:00.0000000') from tab; --> 2
CALCITE:
{code}
SELECT timestampdiff(YEAR, timestamp '2019-06-01 07:01:11', timestamp
'2020-06-01 07:01:11'),timestampdiff(QUARTER, timestamp '2019-06-01 07:01:11',
timestamp '2020-06-01 07:01:11'),timestampdiff(MONTH, timestamp '2019-06-01
07:01:11',timestamp '2020-06-01 07:01:11'),timestampdiff(WEEK, timestamp
'2019-06-01 07:01:11',timestamp '2020-06-01 07:01:11'),timestampdiff(DAY,
timestamp '2019-06-01 07:01:11',timestamp '2020-06-01
07:01:11'),timestampdiff(HOUR, timestamp '2019-06-01 07:01:11',timestamp
'2020-06-01 07:01:11'),timestampdiff(MINUTE, timestamp '2019-06-01
07:01:11',timestamp '2020-06-01 07:01:11'),timestampdiff(SECOND, timestamp
'2019-06-01 07:01:11',timestamp '2020-06-01 07:01:11') FROM depts;
| 1 | 4 | 12 | 52 | 366 | 8784
| 527040 | 31622400
{code}
MSSQL:
{code}
SELECT
datediff(YEAR, '2019-06-01 07:01:11','2020-06-01 07:01:11'),
datediff(QUARTER, '2019-06-01 07:01:11', '2020-06-01 07:01:11'),
datediff(MONTH, '2019-06-01 07:01:11','2020-06-01 07:01:11'),
datediff(WEEK, '2019-06-01 07:01:11', '2020-06-01 07:01:11'),
datediff(DAY, '2019-06-01 07:01:11','2020-06-01 07:01:11'),
datediff(HOUR, '2019-06-01 07:01:11','2020-06-01 07:01:11'),
datediff(MINUTE, '2019-06-01 07:01:11','2020-06-01 07:01:11'),
datediff(SECOND, '2019-06-01 07:01:11', '2020-06-01 07:01:11')
FROM stu;
|1 |4 |12 |53 |366 |8784 |527040 |31622400
{code}
See more:
[https://issues.apache.org/jira/browse/CALCITE-1827|https://issues.apache.org/jira/browse/CALCITE-1827]
was:
* Syntax
TIMESTAMPDIFF ( datepart , startdate , enddate )
-datepart
Is the part of startdate and enddate that specifies the type of boundary
crossed.
-startdate
Is an expression that can be resolved to a time, date.
-enddate
Same with startdate.
* Example
SELECT TIMESTAMPDIFF(year, '2015-12-31 23:59:59.9999999', '2017-01-01
00:00:00.0000000') from tab; --> 2
CALCITE:
{code}
SELECT timestampdiff(YEAR, timestamp '2019-06-01 07:01:11', timestamp
'2020-06-01 07:01:11'),timestampdiff(QUARTER, timestamp '2019-06-01 07:01:11',
timestamp '2020-06-01 07:01:11'),timestampdiff(MONTH, timestamp '2019-06-01
07:01:11',timestamp '2020-06-01 07:01:11'),timestampdiff(WEEK, timestamp
'2019-06-01 07:01:11',timestamp '2020-06-01 07:01:11'),timestampdiff(DAY,
timestamp '2019-06-01 07:01:11',timestamp '2020-06-01
07:01:11'),timestampdiff(HOUR, timestamp '2019-06-01 07:01:11',timestamp
'2020-06-01 07:01:11'),timestampdiff(MINUTE, timestamp '2019-06-01
07:01:11',timestamp '2020-06-01 07:01:11'),timestampdiff(SECOND, timestamp
'2019-06-01 07:01:11',timestamp '2020-06-01 07:01:11') FROM depts;
+------------+------------+------------+------------+------------+-------------+
| EXPR$0 | EXPR$1 | EXPR$2 | EXPR$3 | EXPR$4 | EXPR$5 |
+------------+------------+------------+------------+------------+-------------+
| 1 | 4 | 12 | 52 | 366 | 8784 |
+------------+------------+------------+------------+------------+-------------+
{code}
MSSQL:
{code}
SELECT
datediff(YEAR, '2019-06-01 07:01:11','2020-06-01 07:01:11'),
datediff(QUARTER, '2019-06-01 07:01:11', '2020-06-01 07:01:11'),
datediff(MONTH, '2019-06-01 07:01:11','2020-06-01 07:01:11'),
datediff(WEEK, '2019-06-01 07:01:11', '2020-06-01 07:01:11'),
datediff(DAY, '2019-06-01 07:01:11','2020-06-01 07:01:11'),
datediff(HOUR, '2019-06-01 07:01:11','2020-06-01 07:01:11'),
datediff(MINUTE, '2019-06-01 07:01:11','2020-06-01 07:01:11'),
datediff(SECOND, '2019-06-01 07:01:11', '2020-06-01 07:01:11')
FROM stu;
1 4 12 53 366 8784 527040 31622400
{code}
See more:
[https://issues.apache.org/jira/browse/CALCITE-1827|https://issues.apache.org/jira/browse/CALCITE-1827]
> Add TIMESTAMPDIFF supported in SQL
> ----------------------------------
>
> Key: FLINK-6813
> URL: https://issues.apache.org/jira/browse/FLINK-6813
> Project: Flink
> Issue Type: Sub-task
> Components: Table API & SQL
> Affects Versions: 1.4.0
> Reporter: sunjincheng
> Assignee: sunjincheng
>
> * Syntax
> TIMESTAMPDIFF ( datepart , startdate , enddate )
> -datepart
> Is the part of startdate and enddate that specifies the type of boundary
> crossed.
> -startdate
> Is an expression that can be resolved to a time, date.
> -enddate
> Same with startdate.
> * Example
> SELECT TIMESTAMPDIFF(year, '2015-12-31 23:59:59.9999999', '2017-01-01
> 00:00:00.0000000') from tab; --> 2
> CALCITE:
> {code}
> SELECT timestampdiff(YEAR, timestamp '2019-06-01 07:01:11', timestamp
> '2020-06-01 07:01:11'),timestampdiff(QUARTER, timestamp '2019-06-01
> 07:01:11', timestamp '2020-06-01 07:01:11'),timestampdiff(MONTH, timestamp
> '2019-06-01 07:01:11',timestamp '2020-06-01 07:01:11'),timestampdiff(WEEK,
> timestamp '2019-06-01 07:01:11',timestamp '2020-06-01
> 07:01:11'),timestampdiff(DAY, timestamp '2019-06-01 07:01:11',timestamp
> '2020-06-01 07:01:11'),timestampdiff(HOUR, timestamp '2019-06-01
> 07:01:11',timestamp '2020-06-01 07:01:11'),timestampdiff(MINUTE, timestamp
> '2019-06-01 07:01:11',timestamp '2020-06-01 07:01:11'),timestampdiff(SECOND,
> timestamp '2019-06-01 07:01:11',timestamp '2020-06-01 07:01:11') FROM depts;
> | 1 | 4 | 12 | 52 | 366 | 8784
> | 527040 | 31622400
> {code}
> MSSQL:
> {code}
> SELECT
> datediff(YEAR, '2019-06-01 07:01:11','2020-06-01 07:01:11'),
> datediff(QUARTER, '2019-06-01 07:01:11', '2020-06-01 07:01:11'),
> datediff(MONTH, '2019-06-01 07:01:11','2020-06-01 07:01:11'),
> datediff(WEEK, '2019-06-01 07:01:11', '2020-06-01 07:01:11'),
> datediff(DAY, '2019-06-01 07:01:11','2020-06-01 07:01:11'),
> datediff(HOUR, '2019-06-01 07:01:11','2020-06-01 07:01:11'),
> datediff(MINUTE, '2019-06-01 07:01:11','2020-06-01 07:01:11'),
> datediff(SECOND, '2019-06-01 07:01:11', '2020-06-01 07:01:11')
> FROM stu;
> |1 |4 |12 |53 |366 |8784 |527040 |31622400
> {code}
> See more:
> [https://issues.apache.org/jira/browse/CALCITE-1827|https://issues.apache.org/jira/browse/CALCITE-1827]
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