asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/ddl/analyze-dataset-1/analyze-dataset-1.1.ddl.sqlpp

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 * Licensed to the Apache Software Foundation (ASF) under one
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 * 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: Test ANALYZE DATASET statement
 */

set `import-private-functions` `true`;

drop dataverse test if exists;
create dataverse test;
use test;

create function listMetadata(showSourceAvgItemSize, showSeed) {
  select i.DatasetName, i.IndexName, i.SampleCardinalityTarget, i.SourceCardinality,
    case when showSourceAvgItemSize then i.SourceAvgItemSize else i.SourceAvgItemSize > 0 end as SourceAvgItemSize,
    case when showSeed then i.SampleSeed else i.SampleSeed is known end as SampleSeed
  from Metadata.`Index` i
  where i.DataverseName = "test" and i.IndexName like "sample_idx%"
  order by i.IndexName
};

create function showSampleStats(dsName, idxName, showMinMax) {
  select count(v.values) as cnt,
    case when showMinMax then min(v.values[0]) else min(v.values[0]) > 0 end as min_pk,
    case when showMinMax then max(v.values[0]) else max(v.values[0]) > 0 end as max_pk,
    case when showMinMax then min(v.values[1].x) else min(v.values[1].x) < 0 end as min_x,
    case when showMinMax then max(v.values[1].x) else max(v.values[1].x) < 0 end as max_x
  from dump_index("test", dsName, idxName) as v
};

create type t1 as open {
  id : bigint
};

create dataset ds1(t1) primary key id;

-- analyze on an empty dataset

analyze dataset ds1;