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https://github.com/GreptimeTeam/greptimedb.git
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599f289f59
* feat: add `granularity` and `false_positive_rate` options for indexes Signed-off-by: Zhenchi <zhongzc_arch@outlook.com> * address comments Signed-off-by: Zhenchi <zhongzc_arch@outlook.com> * upgrade proto Signed-off-by: Zhenchi <zhongzc_arch@outlook.com> --------- Signed-off-by: Zhenchi <zhongzc_arch@outlook.com>
95 lines
3.5 KiB
SQL
95 lines
3.5 KiB
SQL
-- Test basic skipping index operations on a single column
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CREATE TABLE `test` (
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`value` DOUBLE,
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`category` STRING,
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`metric` INT64,
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`time` TIMESTAMP TIME INDEX,
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);
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SHOW CREATE TABLE test;
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-- Write initial data
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INSERT INTO test VALUES
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(1.0, 'A', 100, '2020-01-01 00:00:00'),
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(2.0, 'B', 200, '2020-01-01 00:00:01'),
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(3.0, 'A', 300, '2020-01-02 00:00:00'),
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(4.0, 'B', 400, '2020-01-02 00:00:01');
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-- Test queries before adding skipping index
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SELECT * FROM test WHERE value > 2.0 ORDER BY time;
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SELECT * FROM test WHERE metric > 200 ORDER BY time;
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-- Add skipping index
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ALTER TABLE test MODIFY COLUMN value SET SKIPPING INDEX WITH(granularity = 1024, type = 'BLOOM', false_positive_rate = 0.01);
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-- Test queries after adding skipping index
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SELECT * FROM test WHERE value > 2.0 ORDER BY time;
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SELECT * FROM test WHERE value BETWEEN 2.0 AND 4.0 ORDER BY time;
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-- Add more data to test dynamic updates
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INSERT INTO test VALUES
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(5.0, 'C', 500, '2020-01-03 00:00:00'),
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(6.0, 'A', 600, '2020-01-03 00:00:01'),
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(7.0, 'B', 700, '2020-01-04 00:00:00'),
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(8.0, 'C', 800, '2020-01-04 00:00:01');
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-- Test queries with new data
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SELECT * FROM test WHERE value > 6.0 ORDER BY time;
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SELECT * FROM test WHERE value < 3.0 ORDER BY time;
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-- Test multiple columns with skipping indexes
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ALTER TABLE test MODIFY COLUMN metric SET SKIPPING INDEX WITH(granularity = 1024, type = 'BLOOM', false_positive_rate = 0.01);
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-- Test queries with multiple skipping indexes
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SELECT * FROM test WHERE value > 5.0 AND metric < 700 ORDER BY time;
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-- SQLNESS ARG restart=true
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-- Verify persistence after restart
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SHOW CREATE TABLE test;
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SHOW INDEX FROM test;
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-- Test modifying existing skipping index options
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ALTER TABLE test MODIFY COLUMN value SET SKIPPING INDEX WITH(granularity = 8192, type = 'BLOOM', false_positive_rate = 0.01);
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SHOW CREATE TABLE test;
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SHOW INDEX FROM test;
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-- Test modifying existing skipping index options
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ALTER TABLE test MODIFY COLUMN value SET SKIPPING INDEX WITH(granularity = 8192, type = 'BLOOM', false_positive_rate = 0.0001);
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SHOW CREATE TABLE test;
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SHOW INDEX FROM test;
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-- Test removing skipping index
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ALTER TABLE test MODIFY COLUMN value UNSET SKIPPING INDEX;
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SHOW CREATE TABLE test;
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SHOW INDEX FROM test;
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-- Test adding back with different options
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ALTER TABLE test MODIFY COLUMN value SET SKIPPING INDEX WITH(granularity = 2048, type = 'BLOOM', false_positive_rate = 0.01);
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SHOW CREATE TABLE test;
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SHOW INDEX FROM test;
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-- Test removing all skipping indexes
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ALTER TABLE test MODIFY COLUMN value UNSET SKIPPING INDEX;
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ALTER TABLE test MODIFY COLUMN metric UNSET SKIPPING INDEX;
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SHOW CREATE TABLE test;
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SHOW INDEX FROM test;
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-- Test invalid operations and error cases
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-- Test invalid option values (should fail)
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ALTER TABLE test MODIFY COLUMN value SET SKIPPING INDEX WITH(blabla = 1024, type = 'BLOOM');
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-- Test invalid false_positive_rate values (should fail)
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ALTER TABLE test MODIFY COLUMN value SET SKIPPING INDEX WITH(granularity = 1024, type = 'BLOOM', false_positive_rate = 0);
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ALTER TABLE test MODIFY COLUMN value SET SKIPPING INDEX WITH(granularity = 1024, type = 'BLOOM', false_positive_rate = -0.01);
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ALTER TABLE test MODIFY COLUMN value SET SKIPPING INDEX WITH(granularity = 1024, type = 'BLOOM', false_positive_rate = 2);
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-- Test partial options
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ALTER TABLE test MODIFY COLUMN category SET SKIPPING INDEX WITH(granularity = 1024);
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ALTER TABLE test MODIFY COLUMN time SET SKIPPING INDEX WITH(granularity = 1024);
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ALTER TABLE test MODIFY COLUMN value SET SKIPPING INDEX WITH(granularity = 4096);
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SHOW CREATE TABLE test;
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SHOW INDEX FROM test;
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-- Clean up
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DROP TABLE test;
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