replace_vars_with_subplan_refs

Problem:
--------
SELECT * FROM <view> returns following error message:
ERROR:  replace_vars_with_subplan_refs: variable not in subplan target list

Environment:
------------
Version: PostgreSQL 7.2 on i686-pc-linux-gnu, compiled by GCC 2.95.2
System: Linux jtam.brno.czechin.cz 2.2.17-RAID #8 SMP Mon Oct 16 10:48:13
CEST 2000 i686 unknown

Exact steps to reproduce this bug:
----------------------------
CREATE TABLE "fs_ucastnici" (
    "id" integer DEFAULT nextval('"fs_ucastnici_id_seq"'::text) NOT
NULL,
    "jmeno" character varying(50),
    "email" character varying(40),
    Constraint "fs_ucastnici_pkey" Primary Key ("id")
);
CREATE SEQUENCE "fs_ucastnici_id_seq" start 1 increment 1 maxvalue
2147483647 minvalue 1 cache 1;

CREATE TABLE "userdb" (
    "username" character varying(16) NOT NULL,
    "email" text,
    "name" character varying(80)
);
CREATE UNIQUE INDEX userdb_pkey ON userdb USING btree (username);

CREATE TABLE "emaily" (
    "email" text NOT NULL,
    "jmeno" text,
    "akce" character varying(40) NOT NULL,
    Constraint "emaily_pkey" Primary Key ("email")
);

CREATE VIEW "infomail" as
    SELECT DISTINCT ON (lower(vsichni.email)) vsichni.email,
vsichni.jmeno, vsichni.id, vsichni.odkud FROM (
        SELECT fs_ucastnici.email, fs_ucastnici.jmeno,
fs_ucastnici.id::text AS id, 'soutez' AS odkud FROM ONLY fs_ucastnici
        UNION
        SELECT userdb.email, userdb.name, (userdb.username)::text AS
username, 'userdb' FROM ONLY userdb
        UNION
        SELECT emaily.email, emaily.jmeno, ''::text, 'emaily'
        FROM ONLY emaily WHERE (emaily.akce = 'add')
    ) vsichni
    WHERE (vsichni.email ~ '@'::text)
    ORDER BY lower(vsichni.email);

When this schema exists, try:

SELECT * FROM infomail;

On my system, it fails with "ERROR:  replace_vars_with_subplan_refs:
variable not in subplan target list".



bye,
Michal Schwarz