93 lines
2.4 KiB
Plaintext
93 lines
2.4 KiB
Plaintext
-- Tests of using stored generated column as index and partition column.
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-- Most of the cases are ported from other tests to make sure generated columns behaves the same.
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-- Stored generated columns as indices
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DROP TABLE IF EXISTS person;
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CREATE TABLE person (
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id INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
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name VARCHAR(255) NOT NULL,
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address_info JSON,
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city VARCHAR(64) AS (JSON_UNQUOTE(JSON_EXTRACT(address_info, '$.city'))) STORED,
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KEY (city)
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);
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EXPLAIN SELECT name, id FROM person WHERE city = 'Beijing';
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DROP TABLE IF EXISTS `sgc`;
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CREATE TABLE `sgc` (
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`j1` JSON DEFAULT NULL,
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`j2` JSON DEFAULT NULL,
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`a` int(11) GENERATED ALWAYS AS (JSON_EXTRACT(`j1`, "$.a")) STORED,
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`b` int(2) GENERATED ALWAYS AS (JSON_CONTAINS(j2, '1')) STORED,
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KEY `idx_a` (`a`),
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KEY `idx_b` (`b`),
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KEY `idx_a_b` (`a`,`b`)
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);
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EXPLAIN SELECT a FROM sgc where a < 3;
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EXPLAIN SELECT a, b FROM sgc where a < 3;
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EXPLAIN SELECT a, b from sgc where b < 3;
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EXPLAIN SELECT a, b from sgc where a < 3 and b < 3;
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DROP TABLE IF EXISTS sgc1,
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sgc2;
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CREATE TABLE `sgc1` (
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`j1` JSON,
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`j2` JSON,
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`a` INT AS (JSON_EXTRACT(j1, "$.a")) STORED,
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`b` VARCHAR(20) AS (JSON_KEYS(j2)) STORED,
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KEY `idx_a` (`a`),
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KEY `idx_b` (`b`),
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KEY `idx_a_b` (`a`, `b`)
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);
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CREATE TABLE `sgc2` (
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`j1` JSON,
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`j2` JSON,
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`a` INT AS (JSON_EXTRACT(j1, "$.a")) STORED,
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`b` VARCHAR(20) AS (JSON_KEYS(j2)) STORED,
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KEY `idx_a` (`a`),
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KEY `idx_b` (`b`),
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KEY `idx_a_b` (`a`, `b`)
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);
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INSERT INTO sgc1(j1, j2)
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VALUES ('{"a": 1}', '{"1": "1"}'),
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('{"a": 1}', '{"1": "1"}'),
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('{"a": 1}', '{"1": "1"}'),
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('{"a": 1}', '{"1": "1"}'),
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('{"a": 1}', '{"1": "1"}');
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INSERT INTO sgc2(j1, j2)
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VALUES ('{"a": 1}', '{"1": "1"}');
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ANALYZE TABLE sgc1, sgc2;
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EXPLAIN SELECT /*+ TIDB_INLJ(sgc1, sgc2) */ * from sgc1 join sgc2 on sgc1.a=sgc2.a;
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EXPLAIN SELECT * from sgc1 join sgc2 on sgc1.a=sgc2.a;
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-- Stored generated columns as partition columns
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DROP TABLE IF EXISTS sgc3;
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CREATE TABLE sgc3 (
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j JSON,
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a INT AS (JSON_EXTRACT(j, "$.a")) STORED
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)
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PARTITION BY RANGE (a) (
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PARTITION p0 VALUES LESS THAN (1),
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PARTITION p1 VALUES LESS THAN (2),
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PARTITION p2 VALUES LESS THAN (3),
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PARTITION p3 VALUES LESS THAN (4),
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PARTITION p4 VALUES LESS THAN (5),
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PARTITION p5 VALUES LESS THAN (6),
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PARTITION max VALUES LESS THAN MAXVALUE);
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EXPLAIN SELECT * FROM sgc3 WHERE a <= 1;
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EXPLAIN SELECT * FROM sgc3 WHERE a < 7;
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