| // 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. |
| |
| suite("alter_column_stats") { |
| sql """DROP TABLE IF EXISTS statistics_test""" |
| sql """ |
| CREATE TABLE statistics_test ( |
| `id` BIGINT, |
| `col1` VARCHAR, |
| `col2` DATE |
| ) DUPLICATE KEY(`id`) |
| DISTRIBUTED BY HASH(`id`) BUCKETS 3 |
| PROPERTIES ( |
| "replication_num"="1" |
| ); |
| """ |
| |
| sql """INSERT INTO statistics_test VALUES(1, 'a', '2011-01-01')""" |
| sql """INSERT INTO statistics_test VALUES(2, 'b', '2012-01-01')""" |
| sql """INSERT INTO statistics_test VALUES(3, 'c', '2013-01-01')""" |
| |
| sql """ANALYZE statistics_test""" |
| |
| sleep(9000) |
| |
| // qt_sql """ |
| // SHOW COLUMN STATS statistics_test |
| // """ |
| |
| sql """ |
| ALTER TABLE statistics_test |
| MODIFY COLUMN col1 SET STATS('ndv'='148064528', 'num_nulls'='0', 'min_value'='1', 'max_value'='6', |
| 'row_count'='114', 'data_size'='511'); |
| """ |
| |
| // qt_sql2 """ |
| // SHOW COLUMN STATS statistics_test |
| // """ |
| } |
