toStartOfYear
Returns the first day of the year for a date or a date with time.
Syntax
toStartOfYear(expr)
Arguments
| Arguments | Description | 
|---|---|
| expr | date16/date32/datetime | 
Return Type
Datetime object, returns date in “YYYY-MM-DD” format.
Examples
select toStartOfYear(toDate(18869));
+------------------------------+
| toStartOfYear(toDate(18869)) |
+------------------------------+
| 2021-01-01                   |
+------------------------------+
mysql> select toStartOfYear(toDateTime(1630812366));
+---------------------------------------+
| toStartOfYear(toDateTime(1630812366)) |
+---------------------------------------+
| 2021-01-01                            |
+---------------------------------------+