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zvonand 2021-04-09 18:37:14 +03:00
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docs/en/sql-reference/functions/date-time-functions.md
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@ -147,6 +147,9 @@ Result:
└────────────────┘
```
!!! attention "Attention"
The return type `toStartOf*` functions described below is `Date` or `DateTime`. Though these functions can take `DateTime64` as an argument, passing them a `DateTime64` that is out of normal range (years 1970 - 2105) will give incorrect result.
## toStartOfYear {#tostartofyear}
Rounds down a date or date with time to the first day of the year.
@ -1069,4 +1072,3 @@ Result:
│ 2020-01-01 │
└────────────────────────────────────┘
```