public interface SelectDistinctOnStep<R extends Record> extends SelectIntoStep<R>
Select's DSL API when selecting generic
 Record types.
 
 Example: 
 -- get all authors' first and last names, and the number
 -- of books they've written in German, if they have written
 -- more than five books in German in the last three years
 -- (from 2011), and sort those authors by last names
 -- limiting results to the second and third row
   SELECT T_AUTHOR.FIRST_NAME, T_AUTHOR.LAST_NAME, COUNT(*)
     FROM T_AUTHOR
     JOIN T_BOOK ON T_AUTHOR.ID = T_BOOK.AUTHOR_ID
    WHERE T_BOOK.LANGUAGE = 'DE'
      AND T_BOOK.PUBLISHED > '2008-01-01'
 GROUP BY T_AUTHOR.FIRST_NAME, T_AUTHOR.LAST_NAME
   HAVING COUNT(*) > 5
 ORDER BY T_AUTHOR.LAST_NAME ASC NULLS FIRST
    LIMIT 2
   OFFSET 1
      FOR UPDATE
       OF FIRST_NAME, LAST_NAME
       NO WAIT
 
 create.select(TAuthor.FIRST_NAME, TAuthor.LAST_NAME, create.count())
       .from(T_AUTHOR)
       .join(T_BOOK).on(TBook.AUTHOR_ID.equal(TAuthor.ID))
       .where(TBook.LANGUAGE.equal("DE"))
       .and(TBook.PUBLISHED.greaterThan(parseDate('2008-01-01')))
       .groupBy(TAuthor.FIRST_NAME, TAuthor.LAST_NAME)
       .having(create.count().greaterThan(5))
       .orderBy(TAuthor.LAST_NAME.asc().nullsFirst())
       .limit(2)
       .offset(1)
       .forUpdate()
       .of(TAuthor.FIRST_NAME, TAuthor.LAST_NAME)
       .noWait();
 
| Modifier and Type | Method and Description | 
|---|---|
| SelectIntoStep<R> | distinctOn(java.util.Collection<? extends Field<?>> fields)Add the PostgreSQL-specific  ON(...) | 
| SelectIntoStep<R> | distinctOn(Field<?>... fields)Add the PostgreSQL-specific  ON(...) | 
| SelectIntoStep<R> | on(java.util.Collection<? extends Field<?>> fields)Add the PostgreSQL-specific  ON(...) | 
| SelectIntoStep<R> | on(Field<?>... fields)Add the PostgreSQL-specific  ON(...) | 
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ON(...) clause to a
 SELECT DISTINCT ON (...) statement.
 
 This implicitly enforces the DISTINCT clause, no matter if
 it is added explicitly via the jOOQ API.
@Support(value=POSTGRES) SelectIntoStep<R> on(java.util.Collection<? extends Field<?>> fields)
ON(...) clause to a
 SELECT DISTINCT ON (...) statement.
 
 This implicitly enforces the DISTINCT clause, no matter if
 it is added explicitly via the jOOQ API.
@Support(value=POSTGRES) SelectIntoStep<R> distinctOn(Field<?>... fields)
ON(...) clause to a
 SELECT DISTINCT ON (...) statement.Copyright © 2015. All Rights Reserved.