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95 lines
4.3 KiB
SQL
95 lines
4.3 KiB
SQL
-- IMPORTANT: Don't use this setting just yet.
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-- It is for testing purposes, the syntax will likely change soon and the server will not be able
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-- to load the tables created this way. You have been warned.
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SET experimental_merge_tree_allow_custom_partitions = 1;
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SELECT '*** Not partitioned ***';
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DROP TABLE IF EXISTS test.not_partitioned;
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CREATE TABLE test.not_partitioned(x UInt8) ENGINE = MergeTree(tuple(), x, 8192);
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INSERT INTO test.not_partitioned VALUES (1), (2), (3);
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INSERT INTO test.not_partitioned VALUES (4), (5);
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SELECT 'Parts before OPTIMIZE:';
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SELECT partition, name FROM system.parts WHERE database = 'test' AND table = 'not_partitioned' AND active ORDER BY name;
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OPTIMIZE TABLE test.not_partitioned PARTITION tuple() FINAL;
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SELECT 'Parts after OPTIMIZE:';
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SELECT partition, name FROM system.parts WHERE database = 'test' AND table = 'not_partitioned' AND active ORDER BY name;
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SELECT 'Sum before DETACH PARTITION:';
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SELECT sum(x) FROM test.not_partitioned;
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ALTER TABLE test.not_partitioned DETACH PARTITION ID 'all';
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SELECT 'Sum after DETACH PARTITION:';
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SELECT sum(x) FROM test.not_partitioned;
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DROP TABLE test.not_partitioned;
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SELECT '*** Partitioned by week ***';
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DROP TABLE IF EXISTS test.partitioned_by_week;
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CREATE TABLE test.partitioned_by_week(d Date, x UInt8) ENGINE = MergeTree(toMonday(d), x, 8192);
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-- 2000-01-03 belongs to a different week than 2000-01-01 and 2000-01-02
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INSERT INTO test.partitioned_by_week VALUES ('2000-01-01', 1), ('2000-01-02', 2), ('2000-01-03', 3);
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INSERT INTO test.partitioned_by_week VALUES ('2000-01-03', 4), ('2000-01-03', 5);
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SELECT 'Parts before OPTIMIZE:';
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SELECT partition, name FROM system.parts WHERE database = 'test' AND table = 'partitioned_by_week' AND active ORDER BY name;
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OPTIMIZE TABLE test.partitioned_by_week PARTITION '2000-01-03' FINAL;
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SELECT 'Parts after OPTIMIZE:';
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SELECT partition, name FROM system.parts WHERE database = 'test' AND table = 'partitioned_by_week' AND active ORDER BY name;
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SELECT 'Sum before DROP PARTITION:';
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SELECT sum(x) FROM test.partitioned_by_week;
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ALTER TABLE test.partitioned_by_week DROP PARTITION '1999-12-27';
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SELECT 'Sum after DROP PARTITION:';
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SELECT sum(x) FROM test.partitioned_by_week;
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DROP TABLE test.partitioned_by_week;
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SELECT '*** Partitioned by a (Date, UInt8) tuple ***';
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DROP TABLE IF EXISTS test.partitioned_by_tuple;
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CREATE TABLE test.partitioned_by_tuple(d Date, x UInt8, y UInt8) ENGINE = MergeTree((d, x), x, 8192);
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INSERT INTO test.partitioned_by_tuple VALUES ('2000-01-01', 1, 1), ('2000-01-01', 2, 2), ('2000-01-02', 1, 3);
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INSERT INTO test.partitioned_by_tuple VALUES ('2000-01-02', 1, 4), ('2000-01-01', 1, 5);
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SELECT 'Parts before OPTIMIZE:';
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SELECT partition, name FROM system.parts WHERE database = 'test' AND table = 'partitioned_by_tuple' AND active ORDER BY name;
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OPTIMIZE TABLE test.partitioned_by_tuple PARTITION ('2000-01-01', 1) FINAL;
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OPTIMIZE TABLE test.partitioned_by_tuple PARTITION ('2000-01-02', 1) FINAL;
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SELECT 'Parts after OPTIMIZE:';
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SELECT partition, name FROM system.parts WHERE database = 'test' AND table = 'partitioned_by_tuple' AND active ORDER BY name;
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SELECT 'Sum before DETACH PARTITION:';
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SELECT sum(y) FROM test.partitioned_by_tuple;
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ALTER TABLE test.partitioned_by_tuple DETACH PARTITION ID '20000101-1';
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SELECT 'Sum after DETACH PARTITION:';
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SELECT sum(y) FROM test.partitioned_by_tuple;
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DROP TABLE test.partitioned_by_tuple;
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SELECT '*** Partitioned by String ***';
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DROP TABLE IF EXISTS test.partitioned_by_string;
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CREATE TABLE test.partitioned_by_string(s String, x UInt8) ENGINE = MergeTree(tuple(s), x, 8192);
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INSERT INTO test.partitioned_by_string VALUES ('aaa', 1), ('aaa', 2), ('bbb', 3);
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INSERT INTO test.partitioned_by_string VALUES ('bbb', 4), ('aaa', 5);
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SELECT 'Parts before OPTIMIZE:';
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SELECT partition, name FROM system.parts WHERE database = 'test' AND table = 'partitioned_by_string' AND active ORDER BY name;
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OPTIMIZE TABLE test.partitioned_by_string PARTITION 'aaa' FINAL;
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SELECT 'Parts after OPTIMIZE:';
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SELECT partition, name FROM system.parts WHERE database = 'test' AND table = 'partitioned_by_string' AND active ORDER BY name;
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SELECT 'Sum before DROP PARTITION:';
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SELECT sum(x) FROM test.partitioned_by_string;
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ALTER TABLE test.partitioned_by_string DROP PARTITION 'bbb';
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SELECT 'Sum after DROP PARTITION:';
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SELECT sum(x) FROM test.partitioned_by_string;
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DROP TABLE test.partitioned_by_string;
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