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c6e5552f05
* test: migrate aggregation tests from duckdb, part4 Signed-off-by: Dennis Zhuang <killme2008@gmail.com> * fix: tests Signed-off-by: Dennis Zhuang <killme2008@gmail.com> * fix: rename tests Signed-off-by: Dennis Zhuang <killme2008@gmail.com> * fix: comments Signed-off-by: Dennis Zhuang <killme2008@gmail.com> * chore: ignore zero weights test Signed-off-by: Dennis Zhuang <killme2008@gmail.com> * chore: remove duplicated sql Signed-off-by: Dennis Zhuang <killme2008@gmail.com> --------- Signed-off-by: Dennis Zhuang <killme2008@gmail.com>
256 lines
7.7 KiB
Plaintext
256 lines
7.7 KiB
Plaintext
-- Migrated from DuckDB test: test/sql/aggregate/aggregates/test_last.test
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-- Test FIRST and LAST aggregate functions
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-- Test with integers
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CREATE TABLE five(i INTEGER, ts TIMESTAMP TIME INDEX);
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Affected Rows: 0
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INSERT INTO five VALUES (1, 1000), (2, 2000), (3, 3000), (4, 4000), (5, 5000);
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Affected Rows: 5
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SELECT last_value(i) FROM five;
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+--------------------+
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| last_value(five.i) |
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+--------------------+
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| 5 |
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+--------------------+
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SELECT first_value(i) FROM five;
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+---------------------+
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| first_value(five.i) |
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+---------------------+
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| 1 |
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+---------------------+
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SELECT i % 3 AS g, last_value(i) FROM five GROUP BY g ORDER BY g;
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+---+--------------------+
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| g | last_value(five.i) |
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+---+--------------------+
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| 0 | 3 |
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| 1 | 4 |
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| 2 | 5 |
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+---+--------------------+
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SELECT i % 3 AS g, first_value(i) FROM five GROUP BY g ORDER BY g;
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+---+---------------------+
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| g | first_value(five.i) |
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+---+---------------------+
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| 0 | 3 |
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| 1 | 1 |
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| 2 | 2 |
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+---+---------------------+
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-- Test with ORDER BY
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SELECT last_value(i ORDER BY i DESC) FROM five;
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+-------------------------------------------------------+
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| last_value(five.i) ORDER BY [five.i DESC NULLS FIRST] |
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+-------------------------------------------------------+
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| 1 |
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+-------------------------------------------------------+
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SELECT first_value(i ORDER BY i DESC) FROM five;
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+--------------------------------------------------------+
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| first_value(five.i) ORDER BY [five.i DESC NULLS FIRST] |
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+--------------------------------------------------------+
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| 5 |
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+--------------------------------------------------------+
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SELECT i % 3 AS g, last_value(i ORDER BY i DESC) FROM five GROUP BY g ORDER BY g;
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+---+-------------------------------------------------------+
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| g | last_value(five.i) ORDER BY [five.i DESC NULLS FIRST] |
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+---+-------------------------------------------------------+
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| 0 | 3 |
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| 1 | 1 |
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| 2 | 2 |
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+---+-------------------------------------------------------+
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SELECT i % 3 AS g, first_value(i ORDER BY i DESC) FROM five GROUP BY g ORDER BY g;
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+---+--------------------------------------------------------+
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| g | first_value(five.i) ORDER BY [five.i DESC NULLS FIRST] |
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+---+--------------------------------------------------------+
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| 0 | 3 |
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| 1 | 4 |
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| 2 | 5 |
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+---+--------------------------------------------------------+
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-- Test with strings
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CREATE TABLE strings(s VARCHAR, g INTEGER, ts TIMESTAMP TIME INDEX);
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Affected Rows: 0
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INSERT INTO strings VALUES ('apple', 1, 1000), ('banana', 1, 2000), ('cherry', 2, 3000), ('date', 2, 4000), ('elderberry', 3, 5000);
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Affected Rows: 5
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SELECT last_value(s) FROM strings;
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+-----------------------+
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| last_value(strings.s) |
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+-----------------------+
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| elderberry |
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+-----------------------+
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SELECT first_value(s) FROM strings;
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+------------------------+
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| first_value(strings.s) |
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+------------------------+
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| apple |
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+------------------------+
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SELECT g, last_value(s) FROM strings GROUP BY g ORDER BY g;
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+---+-----------------------+
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| g | last_value(strings.s) |
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+---+-----------------------+
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| 1 | banana |
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| 2 | date |
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| 3 | elderberry |
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+---+-----------------------+
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SELECT g, first_value(s) FROM strings GROUP BY g ORDER BY g;
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+---+------------------------+
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| g | first_value(strings.s) |
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+---+------------------------+
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| 1 | apple |
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| 2 | cherry |
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| 3 | elderberry |
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+---+------------------------+
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-- Test with ORDER BY on strings
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SELECT last_value(s ORDER BY s) FROM strings;
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+-----------------------------------------------------------+
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| last_value(strings.s) ORDER BY [strings.s ASC NULLS LAST] |
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+-----------------------------------------------------------+
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| elderberry |
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+-----------------------------------------------------------+
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SELECT first_value(s ORDER BY s) FROM strings;
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+------------------------------------------------------------+
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| first_value(strings.s) ORDER BY [strings.s ASC NULLS LAST] |
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+------------------------------------------------------------+
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| apple |
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+------------------------------------------------------------+
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SELECT g, last_value(s ORDER BY s) FROM strings GROUP BY g ORDER BY g;
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+---+-----------------------------------------------------------+
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| g | last_value(strings.s) ORDER BY [strings.s ASC NULLS LAST] |
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+---+-----------------------------------------------------------+
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| 1 | banana |
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| 2 | date |
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| 3 | elderberry |
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+---+-----------------------------------------------------------+
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SELECT g, first_value(s ORDER BY s) FROM strings GROUP BY g ORDER BY g;
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+---+------------------------------------------------------------+
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| g | first_value(strings.s) ORDER BY [strings.s ASC NULLS LAST] |
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+---+------------------------------------------------------------+
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| 1 | apple |
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| 2 | cherry |
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| 3 | elderberry |
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+---+------------------------------------------------------------+
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-- Test with NULL values
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INSERT INTO strings VALUES (NULL, 1, 6000), ('fig', NULL, 7000);
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Affected Rows: 2
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SELECT last_value(s) FROM strings;
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+-----------------------+
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| last_value(strings.s) |
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+-----------------------+
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| fig |
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+-----------------------+
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SELECT first_value(s) FROM strings;
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+------------------------+
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| first_value(strings.s) |
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+------------------------+
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| apple |
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+------------------------+
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SELECT g, last_value(s) FROM strings WHERE g IS NOT NULL GROUP BY g ORDER BY g;
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+---+-----------------------+
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| g | last_value(strings.s) |
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+---+-----------------------+
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| 1 | |
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| 2 | date |
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| 3 | elderberry |
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+---+-----------------------+
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-- Test with dates
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CREATE TABLE dates(d DATE, i INTEGER, ts TIMESTAMP TIME INDEX);
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Affected Rows: 0
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INSERT INTO dates VALUES ('2021-08-20', 1, 1000), ('2021-08-21', 2, 2000), ('2021-08-22', 3, 3000), ('2021-08-23', 4, 4000), ('2021-08-24', 5, 5000);
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Affected Rows: 5
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SELECT last_value(d) FROM dates;
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+---------------------+
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| last_value(dates.d) |
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+---------------------+
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| 2021-08-24 |
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+---------------------+
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SELECT first_value(d) FROM dates;
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+----------------------+
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| first_value(dates.d) |
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+----------------------+
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| 2021-08-20 |
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+----------------------+
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SELECT i % 3 AS g, last_value(d) FROM dates GROUP BY g ORDER BY g;
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+---+---------------------+
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| g | last_value(dates.d) |
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+---+---------------------+
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| 0 | 2021-08-22 |
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| 1 | 2021-08-23 |
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| 2 | 2021-08-24 |
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+---+---------------------+
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SELECT i % 3 AS g, first_value(d) FROM dates GROUP BY g ORDER BY g;
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+---+----------------------+
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| g | first_value(dates.d) |
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+---+----------------------+
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| 0 | 2021-08-22 |
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| 1 | 2021-08-20 |
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| 2 | 2021-08-21 |
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+---+----------------------+
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-- cleanup
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DROP TABLE five;
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Affected Rows: 0
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DROP TABLE strings;
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Affected Rows: 0
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DROP TABLE dates;
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Affected Rows: 0
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