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d8563ba56d
* feat: adds format, regex_extract function and more type tests Signed-off-by: Dennis Zhuang <killme2008@gmail.com> * fix: forgot functions Signed-off-by: Dennis Zhuang <killme2008@gmail.com> * chore: forgot null type Signed-off-by: Dennis Zhuang <killme2008@gmail.com> * test: forgot date type Signed-off-by: Dennis Zhuang <killme2008@gmail.com> * feat: remove format function Signed-off-by: Dennis Zhuang <killme2008@gmail.com> * test: update results after upgrading datafusion Signed-off-by: Dennis Zhuang <killme2008@gmail.com> --------- Signed-off-by: Dennis Zhuang <killme2008@gmail.com>
64 lines
1.7 KiB
SQL
64 lines
1.7 KiB
SQL
-- String concatenation function tests
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-- Test CONCAT function
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-- Basic concatenation
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SELECT CONCAT('hello', 'world');
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SELECT CONCAT('hello', ' ', 'world');
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SELECT CONCAT('a', 'b', 'c', 'd');
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-- Concatenation with NULL values
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SELECT CONCAT('hello', NULL);
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SELECT CONCAT(NULL, 'world');
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SELECT CONCAT(NULL, NULL);
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-- Concatenation with numbers (should convert to string)
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SELECT CONCAT('value: ', 42);
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SELECT CONCAT(1, 2, 3);
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-- Test with table data
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CREATE TABLE concat_test(first_name VARCHAR, last_name VARCHAR, age INTEGER, ts TIMESTAMP TIME INDEX);
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INSERT INTO concat_test VALUES
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('John', 'Doe', 30, 1000),
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('Jane', 'Smith', 25, 2000),
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('Bob', NULL, 35, 3000),
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(NULL, 'Wilson', 40, 4000);
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-- Concatenate table columns
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SELECT CONCAT(first_name, ' ', last_name) as full_name FROM concat_test ORDER BY ts;
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SELECT CONCAT(first_name, ' is ', age, ' years old') FROM concat_test ORDER BY ts;
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-- Test CONCAT_WS (concat with separator)
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SELECT CONCAT_WS(' ', first_name, last_name) as full_name FROM concat_test ORDER BY ts;
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SELECT CONCAT_WS('-', first_name, last_name, age) FROM concat_test ORDER BY ts;
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SELECT CONCAT_WS(',', 'a', 'b', 'c', 'd');
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-- CONCAT_WS with NULL values (should skip NULLs)
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SELECT CONCAT_WS(' ', 'hello', NULL, 'world');
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SELECT CONCAT_WS('|', first_name, last_name) FROM concat_test ORDER BY ts;
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-- Test pipe operator ||
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SELECT 'hello' || 'world';
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SELECT 'hello' || ' ' || 'world';
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SELECT first_name || ' ' || last_name FROM concat_test WHERE first_name IS NOT NULL AND last_name IS NOT NULL ORDER BY ts;
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-- Unicode concatenation
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SELECT CONCAT('Hello ', '世界');
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SELECT CONCAT('🚀', ' ', '🌟');
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SELECT '中文' || '🐄';
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DROP TABLE concat_test;
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