JOOQ - a brief overview of both columns and aggregation / window functions in a query

Question

This post appears as a result of a comment that I left on a similar question: https://stackoverflow.com/a/165268/

I am using PostgreSQL and jOOQ 3.4 and trying to present the following SQL query in jOOQ:

SELECT *, COUNT(*) OVER() 
FROM table1 t1
JOIN table2 t2 ON (t1.id = t2.id)
JOIN table3 t3 ON (t1.otherId = t3.otherId)

I like how Postgres allows me to briefly represent "all columns plus column count" no more than SELECT *, COUNT(*) OVER(). But when I try to present the same request in jOOQ, in the most concise way I can do this:

create.select( TABLE1.fields() ).select( TABLE2.fields() ).select( TABLE3.fields() ).select( count().over() )
   .from( TABLE1 )
   .join( TABLE2 ).on( TABLE1.ID.equal( TABLE2.ID ))
   .join( TABLE3 ).on( TABLE1.OTHER_ID.equal( TABLE3.OTHER_ID ))

Ideally, I would write instead:

create.select().select( count().over() )
   .from( TABLE1 )
   .join( TABLE2 ).on( TABLE1.ID.equal( TABLE2.ID ))
   .join( TABLE3 ).on( TABLE1.OTHER_ID.equal( TABLE3.OTHER_ID ))

But this does not seem to work. Any thoughts on how I can do this?

Answer 1

, , jOOQ API:

create.select( TABLE1.fields() )
      .select( TABLE2.fields() )
      .select( TABLE3.fields() )
      .select( count().over() )
      ...

SQL:

SELECT table1.*, table2.*, table3.*, COUNT(*) OVER()
...

API- jOOQ:

, :

// Get access to the "model API" from a statement without any SELECT fields
SelectQuery<?> select =
create.select()
      .from( TABLE1 )
      .join( TABLE2 ).on( TABLE1.ID.equal( TABLE2.ID ))
      .join( TABLE3 ).on( TABLE1.OTHER_ID.equal( TABLE3.OTHER_ID ))
      .getQuery();

// Copy all fields from the SELECT statement:
List<Field<?>> fields = new ArrayList<>(select.getSelect());

// And explicitly add them:
select.addSelect(fields);
select.addSelect(count().over());

, , .

, SQL-, SQL:

SELECT t.*, COUNT(*) OVER()
FROM (
  SELECT *
  FROM table1 t1
  JOIN table2 t2 ON (t1.id = t2.id)
  JOIN table3 t3 ON (t1.otherId = t3.otherId)
) t

jOOQ :

Table<?> t = select()
            .from( TABLE1 )
            .join( TABLE2 ).on( TABLE1.ID.equal( TABLE2.ID ))
            .join( TABLE3 ).on( TABLE1.OTHER_ID.equal( TABLE3.OTHER_ID ))
            .asTable("t");

create.select(t.fields(), count().over())
      .from(t);

jOOQ (*) ​​ jOOQ API. , .

:

, PostgreSQL :

SELECT *, COUNT(*) OVER() 
...

SQL "". SQL " " .