# Copyright Materialize, Inc. and contributors. All rights reserved.
#
# Use of this software is governed by the Business Source License
# included in the LICENSE file at the root of this repository.
#
# As of the Change Date specified in that file, in accordance with
# the Business Source License, use of this software will be governed
# by the Apache License, Version 2.0.

mode cockroach

statement ok
CREATE TABLE foo (key INT)

simple conn=mz_system,user=mz_system
ALTER SYSTEM SET enable_continual_task_create = false
----
COMPLETE 0

statement error CREATE CONTINUAL TASK is not available
CREATE CONTINUAL TASK nope (key INT) ON INPUT foo AS (
    INSERT INTO nope SELECT * FROM foo;
)

simple conn=mz_system,user=mz_system
ALTER SYSTEM SET enable_continual_task_create = true
----
COMPLETE 0

# INSERT columns do not match
statement error statement 0: column "key" is of type boolean but expression is of type integer
CREATE CONTINUAL TASK nope (key BOOL) ON INPUT foo AS (
    INSERT INTO nope SELECT * FROM foo;
)

statement error statement 0: INSERT has more target columns than expressions
CREATE CONTINUAL TASK nope (key INT) ON INPUT foo AS (
    INSERT INTO nope SELECT FROM foo;
)

statement error statement 0: INSERT has more expressions than target columns
CREATE CONTINUAL TASK nope (key INT) ON INPUT foo AS (
    INSERT INTO nope SELECT *, 'nope' FROM foo;
)

# Cannot use a VIEW (or other things not directly backed by a persist shard) as
# an input.
statement ok
CREATE VIEW some_view AS SELECT *, 'bar' FROM foo;

statement error CONTINUAL TASK cannot use view as an input
CREATE CONTINUAL TASK nope (key INT, val STRING) ON INPUT some_view AS (
    INSERT INTO nope SELECT * FROM foo;
)

# Must provide columns for recursive CTs
statement error statement 1: INSERT has more expressions than target columns
CREATE CONTINUAL TASK nope ON INPUT foo AS (
    DELETE FROM nope;
    INSERT INTO nope SELECT *, 'bar' FROM foo;
)