blob: 4380a677b4000a0050aa8304955b0bacedc98853 [file] [log] [blame]
/*
* 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 : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest lists.
* Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
* Success : Yes
*/
use test;
select element {'a':a,'b':b}
from Customers as a,
Customers2 as b
where (( /*+ indexnl */ test.`similarity-jaccard`(a.interests,b.interests) >= 0.900000f) and (a.cid < b.cid) and (test.len(a.interests) > 1) and (test.len(b.interests) > 1))
order by a.cid,b.cid
;