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40 lines
1.6 KiB
Plaintext
40 lines
1.6 KiB
Plaintext
DROP DATABASE IF EXISTS mcs226_db;
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CREATE DATABASE mcs226_db;
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USE mcs226_db;
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CREATE TABLE t1
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(
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t1_INT INT,
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t1_TEXT TEXT,
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t1_CHAR_1 CHAR(1),
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t1_DATE DATE,
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t1_TIME TIME
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)ENGINE=Columnstore;
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INSERT INTO t1 VALUES(1, repeat('m',5), 'o', '1111-11-11', '11:22:30.123');
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SELECT ELT(0, t1_TEXT, '1:1:1') FROM t1;
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ELT(0, t1_TEXT, '1:1:1')
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NULL
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SELECT ELT(1, 'abcd', t1_TIME) FROM t1;
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ELT(1, 'abcd', t1_TIME)
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abcd
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SELECT ELT(2, '12:12:12', 71917, 'mariadb columnstore', t1_DATE) FROM t1;
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ELT(2, '12:12:12', 71917, 'mariadb columnstore', t1_DATE)
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71917
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SELECT t1_INT, t1_DATE, t1_TIME, ELT(t1_INT, t1_TEXT, t1_DATE) FROM t1 ORDER BY 1;
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t1_INT t1_DATE t1_TIME ELT(t1_INT, t1_TEXT, t1_DATE)
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1 1111-11-11 11:22:30 mmmmm
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SELECT t1_INT, t1_DATE, t1_TIME, ELT(3, t1_TEXT, t1_CHAR_1, t1_DATE) FROM t1 ORDER BY 1;
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t1_INT t1_DATE t1_TIME ELT(3, t1_TEXT, t1_CHAR_1, t1_DATE)
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1 1111-11-11 11:22:30 1111-11-11
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SELECT t1_INT, t1_DATE, t1_TIME, ELT(3, t1_TEXT, t1_DATE, 'Columnstore', t1_DATE) FROM t1 ORDER BY 1;
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t1_INT t1_DATE t1_TIME ELT(3, t1_TEXT, t1_DATE, 'Columnstore', t1_DATE)
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1 1111-11-11 11:22:30 Columnstore
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SELECT t1_INT, t1_DATE, t1_TIME, ELT(4, t1_CHAR_1, t1_DATE, 'Columnstore', t1_TIME) FROM t1 ORDER BY 1;
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t1_INT t1_DATE t1_TIME ELT(4, t1_CHAR_1, t1_DATE, 'Columnstore', t1_TIME)
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1 1111-11-11 11:22:30 11:22:30
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SELECT t1_INT, t1_DATE, t1_TIME, ELT(12, t1_CHAR_1, t1_TIME) FROM t1 ORDER BY 1;
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t1_INT t1_DATE t1_TIME ELT(12, t1_CHAR_1, t1_TIME)
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1 1111-11-11 11:22:30 NULL
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SELECT t1_INT, t1_DATE, t1_TIME, ELT(t1_Text) FROM t1 ORDER BY 1;
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ERROR 42000: Incorrect parameter count in the call to native function 'ELT'
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DROP DATABASE mcs226_db;
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