Is the error below a bug? Or a feature?
% cat foo.sql
SELECT version();
CREATE TABLE foo ( "key" serial NOT NULL PRIMARY KEY, msg character(100));
CREATE TABLE bar ( "key" serial NOT NULL PRIMARY KEY, msg character(100));
CREATE VIEW baz AS SELECT * FROM foo UNION ALL SELECT * FROM bar;
CREATE OR REPLACE VIEW baz AS SELECT * FROM foo;
% psql -e -f foo.sql
SELECT version();
version
---------------------------------------------------------------------------------------------------------
PostgreSQL 7.4.6 on i686-pc-linux-gnu, compiled by GCC gcc (GCC) 3.2.2
20030222 (Red Hat Linux 3.2.2-5)
(1 row)
CREATE TABLE foo ( "key" serial NOT NULL PRIMARY KEY, msg character(100));
psql:foo.sql:3: NOTICE: CREATE TABLE will create implicit sequence
"foo_key_seq" for "serial" column "foo.key"
psql:foo.sql:3: NOTICE: CREATE TABLE / PRIMARY KEY will create implicit
index "foo_pkey" for table "foo"
CREATE TABLE
CREATE TABLE bar ( "key" serial NOT NULL PRIMARY KEY, msg character(100));
psql:foo.sql:4: NOTICE: CREATE TABLE will create implicit sequence
"bar_key_seq" for "serial" column "bar.key"
psql:foo.sql:4: NOTICE: CREATE TABLE / PRIMARY KEY will create implicit
index "bar_pkey" for table "bar"
CREATE TABLE
CREATE VIEW baz AS SELECT * FROM foo UNION ALL SELECT * FROM bar;
CREATE VIEW
CREATE OR REPLACE VIEW baz AS SELECT * FROM foo;
psql:foo.sql:6: ERROR: cannot change data type of view column "msg"
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