| From: | "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com> |
|---|---|
| To: | Steve Midgley <science(at)misuse(dot)org> |
| Cc: | Baxter Allen <baxter(dot)allen(at)gmail(dot)com>, "pgsql-sql(at)postgresql(dot)org" <pgsql-sql(at)postgresql(dot)org> |
| Subject: | Re: How to display multiple rows in 1 row |
| Date: | 2017-01-11 03:40:57 |
| Message-ID: | CAKFQuwYLEsEJd-NyGbEa=XFMW3PWLKXayjkOo=Zj_btXAjkkEA@mail.gmail.com |
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| Thread: | |
| Lists: | pgsql-sql |
On Tuesday, January 10, 2017, Steve Midgley <science(at)misuse(dot)org> wrote:
>
> Given the DDL at the bottom of my email (what I used to test), this sql
> statement works, I think:
>
> select * from
> (select a.id as a_id, * from table_a a
> left join table_b b on a.id=b.id) a1
> join table_c c on a1.a_id = c.id
>
>
> Returns
>
> "1.table_c";"1.table_c";1;"";;;"1.table_c";4;3
> "2.table_c";"2.table_c";2;"";;;"2.table_c";3;4
> "3.table_c";"3.table_c";3;"";;;"3.table_c";2;21
>
>
Aside from executing without error I don't see how this works at all.
You cannot solve the posed problem by rearranging simple joins.
David J.
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