mirror of https://github.com/citusdata/citus.git
66 lines
2.5 KiB
Plaintext
66 lines
2.5 KiB
Plaintext
--
|
|
-- MULTI_AVERAGE_EXPRESSION_ORDER
|
|
--
|
|
-- This test checks that the group-by columns don't need to be above an average
|
|
-- expression, and can be anywhere in the projection order. This is in response
|
|
-- to a bug we had due to the average expression introducing new columns.
|
|
SELECT
|
|
sum(l_quantity) as sum_qty,
|
|
sum(l_extendedprice) as sum_base_price,
|
|
sum(l_extendedprice * (1 - l_discount)) as sum_disc_price,
|
|
sum(l_extendedprice * (1 - l_discount) * (1 + l_tax)) as sum_charge,
|
|
avg(l_quantity) as avg_qty,
|
|
avg(l_extendedprice) as avg_price,
|
|
avg(l_discount) as avg_disc,
|
|
count(*) as count_order,
|
|
l_returnflag,
|
|
l_linestatus
|
|
FROM
|
|
lineitem
|
|
WHERE
|
|
l_shipdate <= date '1998-12-01' - interval '90 days'
|
|
GROUP BY
|
|
l_returnflag,
|
|
l_linestatus
|
|
ORDER BY
|
|
l_returnflag,
|
|
l_linestatus;
|
|
sum_qty | sum_base_price | sum_disc_price | sum_charge | avg_qty | avg_price | avg_disc | count_order | l_returnflag | l_linestatus
|
|
---------------------------------------------------------------------
|
|
75465.00 | 113619873.63 | 107841287.0728 | 112171153.245923 | 25.6334918478260870 | 38593.707075407609 | 0.05055027173913043478 | 2944 | A | F
|
|
2022.00 | 3102551.45 | 2952540.7118 | 3072642.770652 | 26.6052631578947368 | 40823.045394736842 | 0.05263157894736842105 | 76 | N | F
|
|
149778.00 | 224706948.16 | 213634857.6854 | 222134071.929801 | 25.4594594594594595 | 38195.979629440762 | 0.04939486656467788543 | 5883 | N | O
|
|
73156.00 | 108937979.73 | 103516623.6698 | 107743533.784328 | 25.2175112030334367 | 37551.871675284385 | 0.04983798690106859704 | 2901 | R | F
|
|
(4 rows)
|
|
|
|
-- These tests check that distributed averages only consider non-null input
|
|
-- values. This is in response to a bug we had due to the distributed average
|
|
-- using sum(expression)/count(*) to calculate avg(expression). We now use the
|
|
-- correct form sum(expression)/count(expression) for average calculations.
|
|
-- Run avg() on an expression that contains some null values
|
|
SELECT
|
|
avg(case
|
|
when l_quantity > 20
|
|
then l_quantity
|
|
end)
|
|
FROM
|
|
lineitem;
|
|
avg
|
|
---------------------------------------------------------------------
|
|
35.3570440077497924
|
|
(1 row)
|
|
|
|
-- Run avg() on an expression that contains only null values
|
|
SELECT
|
|
avg(case
|
|
when l_quantity > 5000
|
|
then l_quantity
|
|
end)
|
|
FROM
|
|
lineitem;
|
|
avg
|
|
---------------------------------------------------------------------
|
|
|
|
(1 row)
|
|
|