mirror of
https://github.com/mariadb-corporation/mariadb-columnstore-engine.git
synced 2025-04-21 19:45:56 +03:00
103 lines
2.4 KiB
Plaintext
103 lines
2.4 KiB
Plaintext
DROP DATABASE IF EXISTS mcs79_db;
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CREATE DATABASE mcs79_db;
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USE mcs79_db;
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CREATE USER IF NOT EXISTS 'cejuser'@'localhost' IDENTIFIED BY 'Vagrant1|0000001';
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GRANT ALL PRIVILEGES ON *.* TO 'cejuser'@'localhost';
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FLUSH PRIVILEGES;
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CREATE TABLE t1 (t1_int INT, t1_char CHAR(5))ENGINE=Columnstore;
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CREATE TABLE t2 (t2_int INT, t2_char CHAR(5))ENGINE=Columnstore;
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CREATE TABLE t3 (t3_int INT, t3_char CHAR(5))ENGINE=Innodb;
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CREATE TABLE t4 (t4_int INT, t4_char CHAR(5))ENGINE=Myisam;
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INSERT INTO t1 VALUES (NULL, ''),(1, 'aaa'),(2, 'aaa'),(3, 'ccc'),(4, 'ddd'),(5, 'aaa'),(6, ''),(7, 'eee');
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INSERT INTO t2 VALUES (NULL, ''),(1, 'eee'),(3, 'ccc'),(5, 'jjj'),(6, ''),(7, 'lll'),(9, 'eee'),(11, 'nnn');
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INSERT INTO t3 SELECT * FROM t2;
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INSERT INTO t4 SELECT * FROM t1;
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SELECT t1_int FROM t1 WHERE EXISTS (SELECT t2_int FROM t2 WHERE t1.t1_int = t2.t2_int) ORDER BY 1;
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t1_int
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1
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3
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5
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6
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7
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SELECT t1_int, t1_char FROM t1 WHERE NOT EXISTS (SELECT t2_int FROM t2 WHERE t1.t1_int = t2.t2_int) ORDER BY t1_char;
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t1_int t1_char
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NULL NULL
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2 aaa
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4 ddd
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SELECT * FROM t2 WHERE EXISTS (SELECT t1_int FROM t1 WHERE t1.t1_int = t2.t2_int) ORDER BY t2_int;
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t2_int t2_char
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1 eee
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3 ccc
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5 jjj
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6 NULL
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7 lll
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SELECT t1_char FROM t1 WHERE NOT EXISTS (SELECT t2_int FROM t2 WHERE t1.t1_int = t2.t2_int) ORDER BY t1_char;
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t1_char
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NULL
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aaa
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ddd
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SELECT t1_char FROM t1 WHERE EXISTS (SELECT 1 FROM t2 WHERE t2_int IS NULL) ORDER BY 1;
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t1_char
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NULL
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NULL
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aaa
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aaa
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aaa
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ccc
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ddd
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eee
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SELECT t1_char, t1_int FROM t1 WHERE EXISTS (SELECT 1 FROM t2 WHERE t2_int IS NULL) AND t1_int > 5 ORDER BY 1;
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t1_char t1_int
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NULL 6
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eee 7
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SELECT t1_int FROM t1 WHERE EXISTS (SELECT t3_int FROM t3 WHERE t1.t1_int = t3.t3_int);
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t1_int
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1
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3
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5
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6
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7
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SELECT t1_int FROM t1 WHERE NOT EXISTS (SELECT t3_int FROM t3 WHERE t1.t1_int = t3.t3_int);
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t1_int
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NULL
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2
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4
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SELECT t3_int FROM t3 WHERE EXISTS (SELECT t2_int FROM t2 WHERE t3.t3_int = t2.t2_int);
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t3_int
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1
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3
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5
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6
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7
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9
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11
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SELECT t3_int FROM t3 WHERE NOT EXISTS (SELECT t2_int FROM t2 WHERE t3.t3_int = t2.t2_int);
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t3_int
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NULL
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SELECT t1_int FROM t1 WHERE EXISTS (SELECT t4_int FROM t4 WHERE t1.t1_int = t4.t4_int);
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t1_int
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1
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2
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3
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4
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5
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6
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7
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SELECT t1_int FROM t1 WHERE NOT EXISTS (SELECT t4_int FROM t4 WHERE t1.t1_int = t4.t4_int);
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t1_int
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NULL
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SELECT t4_int FROM t4 WHERE EXISTS (SELECT t2_int FROM t2 WHERE t4.t4_int = t2.t2_int);
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t4_int
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1
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3
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5
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6
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7
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SELECT t4_int FROM t4 WHERE NOT EXISTS (SELECT t2_int FROM t2 WHERE t4.t4_int = t2.t2_int);
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t4_int
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NULL
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2
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4
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DROP USER 'cejuser'@'localhost';
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DROP DATABASE mcs79_db;
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