Fixed computation of ByteSize for CBO for OLAP tables

ydb/core/kqp/ut/join/data/queries/tpch8.sql

@@ -0,0 +1,43 @@
+pragma TablePathPrefix = "/Root/";
+
+-- TPC-H/TPC-R National Market Share Query (Q8)
+-- TPC TPC-H Parameter Substitution (Version 2.17.2 build 0)
+-- using 1680793381 as a seed to the RNG
+
+select
+    o_year,
+    sum(case
+        when nation = 'MOZAMBIQUE' then volume
+        else 0
+    end) / sum(volume) as mkt_share
+from
+    (
+        select
+            DateTime::GetYear(o_orderdate) as o_year,
+            l_extendedprice * (1 - l_discount) as volume,
+            n2.n_name as nation
+        from
+            part
+            cross join supplier
+            cross join lineitem
+            cross join orders
+            cross join customer
+            cross join nation n1
+            cross join nation n2
+            cross join region
+        where
+            p_partkey = l_partkey
+            and s_suppkey = l_suppkey
+            and l_orderkey = o_orderkey
+            and o_custkey = c_custkey
+            and c_nationkey = n1.n_nationkey
+            and n1.n_regionkey = r_regionkey
+            and r_name = 'AFRICA'
+            and s_nationkey = n2.n_nationkey
+            and o_orderdate between date('1995-01-01') and date('1996-12-31')
+            and p_type = 'ECONOMY PLATED COPPER'
+    ) as all_nations
+group by
+    o_year
+order by
+    o_year;