blob: 4d0219ca5b3357d193642b3d3126ed66c7d0af96 [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 : Tests whether an ngram_index is applied to optimize a selection query using the edit-distance-check function on strings.
* The index should *not* be applied (see below).
* Success : Yes
*/
drop dataverse test if exists;
create dataverse test;
use dataverse test;
create type DBLPType as closed {
id: int32,
dblpid: string,
title: string,
authors: string,
misc: string
}
create dataset DBLP(DBLPType) primary key id;
create index ngram_index on DBLP(authors) type ngram(3);
write output to asterix_nc1:"rttest/inverted-index-basic_ngram-edit-distance-check-panic.adm";
// This query cannot be optimized with an index, based on the high edit distance.
for $o in dataset('DBLP')
let $ed := edit-distance-check($o.authors, "Amihay Motro", 5)
where $ed[0]
return $o