| /* |
| * 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. |
| */ |
| /* |
| * Description : Equi joins two datasets, FacebookUsers and FacebookMessages, based on their user's id. |
| * We first expect FacebookUsers' primary index to be used |
| * to satisfy the range condition on it's primary key. |
| * FacebookMessages has a secondary btree index on author-id-copy, and given the 'indexnl' hint |
| * we expect the join to be transformed into an indexed nested-loop join. |
| * Success : Yes |
| */ |
| |
| drop dataverse test if exists; |
| create dataverse test; |
| use dataverse test; |
| |
| create type EmploymentType as closed { |
| organization-name: string, |
| start-date: date, |
| end-date: date? |
| } |
| |
| create type FacebookUserType as closed { |
| id: int32, |
| id-copy: int32, |
| alias: string, |
| name: string, |
| user-since: datetime, |
| user-since-copy: datetime, |
| friend-ids: {{ int32 }}, |
| employment: [EmploymentType] |
| } |
| |
| create type FacebookMessageType as closed { |
| message-id: int32, |
| message-id-copy: int32, |
| author-id: int32, |
| author-id-copy: int32, |
| in-response-to: int32?, |
| sender-location: point?, |
| message: string |
| } |
| |
| create dataset FacebookUsers(FacebookUserType) |
| primary key id; |
| |
| create dataset FacebookMessages(FacebookMessageType) |
| primary key message-id; |
| |
| create index fbmIdxAutId if not exists on FacebookMessages(author-id-copy); |
| |
| write output to nc1:"rttest/btree-index-join_title-secondary-equi-join-multiindex.adm"; |
| |
| for $user in dataset('FacebookUsers') |
| for $message in dataset('FacebookMessages') |
| where $user.id /*+ indexnl */ = $message.author-id-copy |
| and $user.id >= 11000 and $user.id <= 12000 |
| return { |
| "fbu-ID": $user.id, |
| "fbm-auth-ID": $message.author-id, |
| "uname": $user.name, |
| "message": $message.message |
| } |