asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance-check-panic.aql

/*
 * Licensed to the Apache Software Foundation (ASF) under one
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 * distributed with this work for additional information
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 * 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,
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 * KIND, either express or implied.  See the License for the
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 * 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 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