dalongliu created FLINK-26945:
---------------------------------
Summary: Add DATE_SUB supported in SQL & Table API
Key: FLINK-26945
URL: https://issues.apache.org/jira/browse/FLINK-26945
Project: Flink
Issue Type: Sub-task
Components: Table SQL / API
Reporter: dalongliu
Fix For: 1.16.0
Returns the date {{numDays}} before {{{}startDate{}}}.
Syntax:
{code:java}
date_sub(startDate, numDays) {code}
Arguments:
* {{{}startDate{}}}: A DATE expression.
* {{{}numDays{}}}: An INTEGER expression.
Returns:
A DATE.
If {{numDays}} is negative abs(num_days) are added to {{{}startDate{}}}.
If the result date overflows the date range the function raises an error.
Examples:
{code:java}
> SELECT date_sub('2016-07-30', 1);
2016-07-29 {code}
See more:
*
[Spark|https://spark.apache.org/docs/latest/sql-ref-functions-builtin.html#date-and-timestamp-functions]
* [Hive|https://cwiki.apache.org/confluence/display/hive/languagemanual+udf]
--
This message was sent by Atlassian Jira
(v8.20.1#820001)
