# 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

# The following is a regression test for cases 3), 4), and 6)
# of https://github.com/MaterializeInc/database-issues/issues/5797,
# where aggregate functions would type-promote to floating point,
# but could promote to numeric.

statement ok
CREATE TABLE t_19511_case_3 (row_index INT, decimal_39_8_val DECIMAL(39,8));

statement ok
INSERT INTO t_19511_case_3 VALUES (3, 9999999999999999999999999999999.99999999::DECIMAL(39,8));

statement ok
INSERT INTO t_19511_case_3 VALUES (4, -9999999999999999999999999999999.99999999::DECIMAL(39,8));

statement ok
CREATE OR REPLACE VIEW v_19511_case_3 (row_index, decimal_39_8_val)
 AS SELECT 3, 9999999999999999999999999999999.99999999::DECIMAL(39,8)
    UNION SELECT 4, -9999999999999999999999999999999.99999999::DECIMAL(39,8);

# Note that we get an error in the evaluation of this case, while
# PostgreSQL successfully computes a result. This is due to the
# precision of our numeric types vs. the algorithm used to calculate
# standard deviation (https://github.com/MaterializeInc/database-issues/issues/436).
query error
SELECT
  stddev_samp(decimal_39_8_val)
FROM
  t_19511_case_3
WHERE row_index IN (3, 4);

query error
SELECT
  stddev_samp(decimal_39_8_val)
FROM
WHERE row_index IN (3, 4);
  v_19511_case_3

statement ok
CREATE TABLE t_19511_case_4 (row_index INT, int8_val INT8);

statement ok
INSERT INTO t_19511_case_4 VALUES (5, 0::INT8);

statement ok
INSERT INTO t_19511_case_4 VALUES (7, 9223372036854775807::INT8);

statement ok
CREATE OR REPLACE VIEW v_19511_case_4 (row_index, int8_val)
 AS SELECT 5, 0::INT8
    UNION SELECT 7, 9223372036854775807::INT8;

query R
SELECT
  stddev_pop(int8_val)
FROM
  t_19511_case_4
WHERE row_index IN (5, 7);
----
4611686018427387903.50000000000000000001

query R
SELECT
  stddev_pop(int8_val)
FROM
  v_19511_case_4
WHERE row_index IN (5, 7);
----
4611686018427387903.50000000000000000001

statement ok
CREATE TABLE t_19511_case_6 (row_index INT, decimal_39_8_val DECIMAL(39,8));

statement ok
INSERT INTO t_19511_case_6 VALUES (6, 1.00000001::DECIMAL(39,8));

statement ok
INSERT INTO t_19511_case_6 VALUES (8, 0.99999999::DECIMAL(39,8));

statement ok
CREATE OR REPLACE VIEW v_19511_case_6 (row_index, decimal_39_8_val)
 AS SELECT 6, 1.00000001::DECIMAL(39,8)
    UNION SELECT 8, 0.99999999::DECIMAL(39,8);

query R
SELECT
  stddev_pop(decimal_39_8_val)
FROM
  t_19511_case_6
WHERE row_index IN (8, 6);
----
0.00000001

query R
SELECT
  stddev_pop(decimal_39_8_val)
FROM
  v_19511_case_6
WHERE row_index IN (8, 6);
----
0.00000001