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TO_START_OF_ISO_YEAR

Returns the first day of the ISO year for a date or a date with time (timestamp/datetime).

Syntax

TO_START_OF_ISO_YEAR(<expr>)

Arguments

ArgumentsDescription
<expr>date/timestamp

Return Type

DATE, returns date in “YYYY-MM-DD” format.

Examples

SELECT
to_start_of_iso_year('2023-11-12 09:38:18.165575');

┌────────────────────────────────────────────────────┐
│ to_start_of_iso_year('2023-11-12 09:38:18.165575')
├────────────────────────────────────────────────────┤
2023-01-02
└────────────────────────────────────────────────────┘
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