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44 lines
2.5 KiB
Plaintext
44 lines
2.5 KiB
Plaintext
#
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# Test NTH_VALUE() Window Function
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# Author: Bharath, bharath.bokka@mariadb.com
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#
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-- source ../include/have_columnstore.inc
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--disable_warnings
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DROP DATABASE IF EXISTS mcs129_db;
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--enable_warnings
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CREATE DATABASE mcs129_db;
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USE mcs129_db;
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CREATE TABLE t1 (a CHAR(1), b INT)ENGINE=Columnstore;
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INSERT INTO t1 VALUES ('', NULL),('a', 123),('a', 1),('b', 123),('c', 1861),('c', 1991),('d', 10701),('d', 1071),('a', 92);
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SELECT a, b, NTH_VALUE(a, 2) OVER(ORDER BY b DESC) second_value FROM t1;
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SELECT a, b, NTH_VALUE(b, 8) OVER(ORDER BY b) eight_value FROM t1;
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SELECT a, b, NTH_VALUE(a, 3) OVER(ORDER BY b) third_value FROM t1;
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SELECT a, b, NTH_VALUE(b, 3) OVER(ORDER BY a DESC) third_value FROM t1;
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SELECT a, b, NTH_VALUE(a, 1) OVER(ORDER BY b DESC) first_value FROM t1;
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SELECT a, b, NTH_VALUE(a, 4) OVER w fourth_value FROM t1 WINDOW w AS (ORDER BY a DESC);
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SELECT a, b, NTH_VALUE(b, 4) OVER w fourth_value FROM t1 WINDOW w AS (ORDER BY b);
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SELECT a, b, NTH_VALUE(a, 2) OVER(PARTITION BY b) second_value FROM t1;
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SELECT a, b, NTH_VALUE(a, 2) OVER(PARTITION BY a) second_value FROM t1;
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SELECT a, b, NTH_VALUE(a, 2) OVER(PARTITION BY a ORDER BY b DESC) second_value FROM t1;
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SELECT a, b, NTH_VALUE(a, 2) OVER(PARTITION BY a ORDER BY b ASC) second_value FROM t1;
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SELECT a, b, NTH_VALUE(a, 2) OVER(PARTITION BY b ORDER BY b DESC) second_value FROM t1;
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SELECT a, b, NTH_VALUE(b, 2) OVER(PARTITION BY a ORDER BY b DESC) second_value FROM t1;
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SELECT a, b, NTH_VALUE(b, 2) OVER(PARTITION BY a ORDER BY b ASC) second_value FROM t1;
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SELECT a, b, NTH_VALUE(b, 2) OVER(PARTITION BY b ORDER BY b DESC) second_value FROM t1;
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SELECT a, b, NTH_VALUE(a, 2) OVER(PARTITION BY a ORDER BY b RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) second_value FROM t1;
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SELECT a, b, NTH_VALUE(b, 2) OVER(PARTITION BY a ORDER BY b RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) second_value FROM t1;
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SELECT a, b, NTH_VALUE(a, 2) OVER(PARTITION BY b ORDER BY b RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) second_value FROM t1;
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SELECT a, b, NTH_VALUE(b, 2) OVER(PARTITION BY b ORDER BY b RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) second_value FROM t1;
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--error ER_WRONG_TYPE_FOR_RANGE_FRAME
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SELECT a, b, NTH_VALUE(b, 2) OVER(PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) second_value FROM t1;
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--error ER_WRONG_TYPE_FOR_RANGE_FRAME
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SELECT a, b, NTH_VALUE(a, 2) OVER(PARTITION BY a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) second_value FROM t1;
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# Clean UP
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DROP DATABASE mcs129_db;
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