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luhuayi 177cd61a57 DWS DEVG 910.211 version

Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com>
Co-authored-by: luhuayi <luhuayi@huawei.com>
Co-committed-by: luhuayi <luhuayi@huawei.com>

2025-05-05 07:44:03 +00:00

date_part

The date_part function is modeled on the traditional Ingres equivalent to the SQL-standard function extract:

date_part('field', source)

Note that the field must be a string, rather than a name. The valid field names are the same as those for extract. For details, see EXTRACT.

Example:

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SELECT date_part('day', TIMESTAMP '2001-02-16 20:38:40');
 date_part 
-----------
        16
(1 row)

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SELECT date_part('hour', INTERVAL '4 hours 3 minutes');
 date_part 
-----------
         4
(1 row)

Parent topic: Date and Time Processing Functions and Operators