Issue #2132 will finally be implemented in jOOQ 3.11 with a lot of support 
in PostgreSQL and some emulations in other databases, where suitable.

Am Montag, 8. Juni 2015 14:06:52 UTC+2 schrieb Oleg Oleynik:
>
> This really helps.
> But I modified your code to:
>
>  public static Field<Integer> myExtract(String part, Field<Timestamp> 
> timestamp) {
>         return DSL.field("extract({0} from {1})", Integer.class, DSL.
> keyword(part), timestamp).as(part);
>  }
>
> because I want to get extracted value from results by alias.
>
> Thank you, Lukas!
>
> понедельник, 8 июня 2015 г., 15:17:14 UTC+4 пользователь Lukas Eder 
> написал:
>>
>> Hello,
>>
>> We have a feature request on the roadmap asking for additional DateParts 
>> to be supported:
>> https://github.com/jOOQ/jOOQ/issues/2132
>>
>> For the time being, please use "plain SQL" as documented here:
>> http://www.jooq.org/doc/latest/manual/sql-building/plain-sql
>>
>> For instance:
>>
>> public static Field<Integer> myExtract(String part, Field<Timestamp> 
>> timestamp) {
>>     return DSL.field("extract({0} from {1})", Integer.class, 
>> DSL.keyword(part), timestamp);
>> }
>>
>>
>> Hope this helps,
>> Lukas
>>
>> 2015-06-08 12:21 GMT+02:00 Oleg Oleynik <oleg.ol...@gmail.com>:
>>
>>> Hi All!
>>>
>>> In PostgreSQL I can extract from TIMESTAMP in many ways:
>>> century, day, decade, dow, doy, epoch, hour, isodow, isoyear, 
>>> microseconds, millennium, milliseconds, minute, month, quarter, second, 
>>> timezone, timezone_hour, timezone_minute, week, year.
>>>
>>> But in JOOQ DatePart enum contains only YEAR, MONTH, DAY, HOUR, MINUTE, 
>>> SECOND.
>>>
>>> Enums in Java are final so I can't override DatePart for 
>>> adding necessary values.
>>>
>>> Is there way to extract other values, when I use JOOQ + PostgreSQL?
>>>
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>>
>>

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