asterix-app/src/test/resources/optimizerts/queries/nested_loj3.aql

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
drop dataverse tpch if exists;
create dataverse tpch;
use dataverse tpch;

create type LineItemType as closed {
  l_orderkey: int32, 
  l_partkey: int32, 
  l_suppkey: int32, 
  l_linenumber: int32, 
  l_quantity: double, 
  l_extendedprice: double,
  l_discount: double, 
  l_tax: double,
  l_returnflag: string, 
  l_linestatus: string, 
  l_shipdate: string,
  l_commitdate: string, 
  l_receiptdate: string, 
  l_shipinstruct: string, 
  l_shipmode: string, 
  l_comment: string
}

create type OrderType as closed {
  o_orderkey: int32, 
  o_custkey: int32, 
  o_orderstatus: string, 
  o_totalprice: double, 
  o_orderdate: string, 
  o_orderpriority: string,
  o_clerk: string, 
  o_shippriority: int32, 
  o_comment: string
}

create type CustomerType as closed {
  c_custkey: int32, 
  c_name: string, 
  c_address: string, 
  c_nationkey: int32, 
  c_phone: string, 
  c_acctbal: double, 
  c_mktsegment: string,
  c_comment: string
}


create type PartSuppType as closed {
  ps_partkey: int32, 
  ps_suppkey: int32,
  ps_availqty: int32,
  ps_supplycost: double,
  ps_comment: string 
}


create nodegroup group1 if not exists on nc1, nc2;

create dataset LineItems(LineItemType)
  primary key l_orderkey, l_linenumber on group1;
create dataset Orders(OrderType)
  primary key o_orderkey on group1;
create dataset Customers(CustomerType) 
  primary key c_custkey on group1;
create dataset PartSupp(PartSuppType)
  primary key ps_partkey, ps_suppkey on group1;  

write output to nc1:"/tmp/nested_loj.adm";

for $c in dataset('Customers')
let $orders := 
  for $o in dataset('Orders')
  where $o.o_custkey = $c.c_custkey
  let $items := 
    for $l in dataset('LineItems')
    where $l.l_orderkey = $o.o_orderkey
    let $partsupp := 
      for $ps in dataset('PartSupp')
      where $ps.ps_partkey = $l.l_partkey and $ps.ps_suppkey = $l.l_suppkey
      return $ps     
    return {
        "item": $l,
        "part_supplier": $partsupp
    }    
  return {
     "order": $o,
     "items": $items
  }  
return {
  "cust": $c,
  "orders": $orders
}