Refs -- Updated SQL example in Exists() docs.
Follow up to
@@ -633,12 +633,13 @@ On PostgreSQL, the SQL looks like:
.. code-block:: sql
SELECT "post"."id", "post"."published_at", EXISTS(
- SELECT U0."id", U0."post_id", U0."email", U0."created_at"
+ SELECT (1) as "a"
FROM "comment" U0
WHERE (
U0."created_at" >= YYYY-MM-DD HH:MM:SS AND
- U0."post_id" = ("post"."id")
+ U0."post_id" = "post"."id"
)
+ LIMIT 1
) AS "recent_comment" FROM "post"
It's unnecessary to force ``Exists`` to refer to a single column, since the
