Re: Any way to get nested loop index joins on CTEs?

Jean-Christophe BOGGIO <postgresql@thefreecat.org>

From: Jean-Christophe BOGGIO <postgresql@thefreecat.org>
To: pgsql-performance@lists.postgresql.org
Date: 2025-07-16T11:24:54Z
Lists: pgsql-performance
Following up on this, I very often have to create PLPgSql functions to 
workaround this problem: create one (or several) temp table(s) (with ON 
COMMIT DROP), analyze it/them and create indices on some field(s).

Being able to write something like:

WITH xxx AS MATERIALIZED ANALYZED INDEXED ON field1 (
     SELECT DISTINCT myfield AS field1
     FROM table1
)
SELECT field2
FROM table2
JOIN xxx USING(field1);

would help a lot in some cases. Of course, the syntax is just a thought 
but the general idea is there.