Synapse serverless TPC-H Query15 wrong syntax - azure-synapse

Question

I am trying the TPC-H Queries, they all worked fine except Number 15, basically supplier_no was not recognized, do you know how to rewrite it, the only change I made for all Queries is to replace limit by top
SELECT
--Query15
s_suppkey,
s_name,
s_address,
s_phone,
total_revenue
FROM
supplier,
(
SELECT
l_suppkey AS supplier_no,
SUM(l_extendedprice * (1 - l_discount)) AS total_revenue
FROM
lineitem
WHERE
l_shipdate >= CAST('1996-01-01' AS date)
AND l_shipdate < CAST('1996-04-01' AS date)
GROUP BY
supplier_no
) revenue0
WHERE
s_suppkey = supplier_no
AND total_revenue = (
SELECT
MAX(total_revenue)
FROM
(
SELECT
l_suppkey AS supplier_no,
SUM(l_extendedprice * (1 - l_discount)) AS total_revenue
FROM
lineitem
WHERE
l_shipdate >= CAST('1996-01-01' AS date)
AND l_shipdate < CAST('1996-04-01' AS date)
GROUP BY
supplier_no
) revenue1
)
ORDER BY
s_suppkey;

Answer 1

If you are getting the following errors you just need to make sure that you are referring to the source column name (l_suppkey) in this case, not the alias (supplier_no) in this case:
Msg 207, Level 16, State 1, Line 1 Invalid column name 'supplier_no'.
Msg 164, Level 15, State 1, Line 1 Each GROUP BY expression must
contain at least one column that is not an outer reference.
A full statement which has been tested against a dedicated SQL pool in Azure Synapse Analytics:
SELECT
--Query15
s_suppkey,
s_name,
s_address,
s_phone,
total_revenue
FROM
supplier,
(
SELECT
l_suppkey AS supplier_no,
SUM(l_extendedprice * (1 - l_discount)) AS total_revenue
FROM
lineitem
WHERE
l_shipdate >= CAST('1996-01-01' AS date)
AND l_shipdate < CAST('1996-04-01' AS date)
GROUP BY
l_suppkey
) revenue0
WHERE
s_suppkey = supplier_no
AND total_revenue = (
SELECT
MAX(total_revenue)
FROM
(
SELECT
l_suppkey AS supplier_no,
SUM(l_extendedprice * (1 - l_discount)) AS total_revenue
FROM
lineitem
WHERE
l_shipdate >= CAST('1996-01-01' AS date)
AND l_shipdate < CAST('1996-04-01' AS date)
GROUP BY
l_suppkey
) revenue1
)
ORDER BY
s_suppkey;
NB SQL Server has the ability to refer to the alias in the ORDER BY statement but not the GROUP BY.
Re related discussion on performance on Azure Synapse Serverless SQL Pools:
Just for fun, I repartitioned my TPC-H SF10 dbo.lineitem table by l_shipdate, added the filepath() metadata function to filter on and got the warm query down to 1 sec, 7 seconds on first run. So some caching did seem to be in play.
I realise you have not had to do these very query-specific optimisations for the other platforms but I wanted to see if it was possible to improve the performance.
I suppose Q14 is to test specific transformation rules in the respective db engines:
The query:
;WITH cte AS
(
SELECT
l_suppkey,
SUM(l_extendedprice * (1 - l_discount)) AS total_revenue
FROM OPENROWSET(
BULK 'enriched/tpch/tpch10/lineitem_partitioned/*/*.parquet',
DATA_SOURCE = 'MyDataSource',
FORMAT = 'PARQUET'
) x
WHERE x.filepath(1) = 1996
AND l_shipdate Between CAST('1996-01-01' AS DATE) And CAST('1996-04-01' AS DATE)
GROUP BY l_suppkey
)
SELECT
s.s_suppkey,
s.s_name,
s.s_address,
s.s_phone,
c.total_revenue
FROM ext.supplier s
INNER JOIN cte c ON s.s_suppkey = c.l_suppkey
WHERE total_revenue = ( SELECT MAX(total_revenue) FROM cte );