> Now, I get a different problem, this time with the following code
> intended to materialize paths on the fly and summarize down to a
> certain depth in a tree:
>
> CREATE TABLE tree(
> id INTEGER PRIMARY KEY,
> parent_id INTEGER REFERENCES tree(id)
> );
>
> INSERT INTO tree
> VALUES (1, NULL), (2, 1), (3,1), (4,2), (5,2), (6,2), (7,3), (8,3),
> (9,4), (10,4), (11,7), (12,7), (13,7), (14, 9), (15,11), (16,11);
>
> WITH RECURSIVE t(id, path) AS (
> VALUES(1,ARRAY[NULL::integer])
> UNION ALL
> SELECT tree.id, t.path || tree.id
> FROM tree JOIN t ON (tree.parent_id = t.id)
> )
> SELECT
> t1.id, count(t2.*)
> FROM
> t t1
> JOIN
> t t2
> ON (
> t1.path[1:2] = t2.path[1:2]
> AND
> array_upper(t1.path,1) = 2
> AND
> array_upper(t2.path,1) > 2
> )
> GROUP BY t1.id;
> ERROR: unrecognized node type: 203
Thanks for the report. We will look into this.
> Please apply the attached patch to help out with tab
> completion in psql.
Ok, it will appear in the next patches.
--
Tatsuo Ishii
SRA OSS, Inc. Japan
