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https://github.com/GreptimeTeam/greptimedb.git
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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>
292 lines
8.4 KiB
Plaintext
292 lines
8.4 KiB
Plaintext
-- String case conversion function tests
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-- Basic UPPER and LOWER functions
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SELECT UPPER('hello world');
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+----------------------------+
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| upper(Utf8("hello world")) |
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+----------------------------+
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| HELLO WORLD |
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+----------------------------+
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SELECT LOWER('HELLO WORLD');
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+----------------------------+
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| lower(Utf8("HELLO WORLD")) |
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+----------------------------+
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| hello world |
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+----------------------------+
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SELECT UPPER('MiXeD cAsE');
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+---------------------------+
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| upper(Utf8("MiXeD cAsE")) |
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+---------------------------+
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| MIXED CASE |
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+---------------------------+
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SELECT LOWER('MiXeD cAsE');
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+---------------------------+
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| lower(Utf8("MiXeD cAsE")) |
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+---------------------------+
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| mixed case |
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+---------------------------+
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-- INITCAP (capitalize first letter of each word)
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SELECT INITCAP('hello world');
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+------------------------------+
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| initcap(Utf8("hello world")) |
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+------------------------------+
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| Hello World |
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+------------------------------+
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SELECT INITCAP('HELLO WORLD');
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+------------------------------+
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| initcap(Utf8("HELLO WORLD")) |
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+------------------------------+
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| Hello World |
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+------------------------------+
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SELECT INITCAP('mIxEd CaSe TeSt');
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+----------------------------------+
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| initcap(Utf8("mIxEd CaSe TeSt")) |
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+----------------------------------+
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| Mixed Case Test |
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+----------------------------------+
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-- Test with NULL
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SELECT UPPER(NULL);
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+-------------+
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| upper(NULL) |
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+-------------+
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+-------------+
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SELECT LOWER(NULL);
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+-------------+
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| lower(NULL) |
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+-------------+
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+-------------+
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SELECT INITCAP(NULL);
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+---------------+
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| initcap(NULL) |
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+---------------+
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+---------------+
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-- Test with numbers and special characters
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SELECT UPPER('hello123!@#');
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+----------------------------+
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| upper(Utf8("hello123!@#")) |
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+----------------------------+
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| HELLO123!@# |
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+----------------------------+
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SELECT LOWER('HELLO123!@#');
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+----------------------------+
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| lower(Utf8("HELLO123!@#")) |
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+----------------------------+
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| hello123!@# |
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+----------------------------+
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SELECT INITCAP('hello-world_test');
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+-----------------------------------+
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| initcap(Utf8("hello-world_test")) |
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+-----------------------------------+
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| Hello-World_Test |
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+-----------------------------------+
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-- Test with table data
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CREATE TABLE case_test("name" VARCHAR, city VARCHAR, ts TIMESTAMP TIME INDEX);
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Affected Rows: 0
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INSERT INTO case_test VALUES
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('john doe', 'new york', 1000),
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('JANE SMITH', 'LOS ANGELES', 2000),
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('Bob Wilson', 'Chicago', 3000),
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('alice johnson', 'BOSTON', 4000);
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Affected Rows: 4
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-- Apply case functions to table data
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SELECT "name", UPPER("name"), LOWER("name"), INITCAP("name") FROM case_test ORDER BY ts;
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+---------------+-----------------------+-----------------------+-------------------------+
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| name | upper(case_test.name) | lower(case_test.name) | initcap(case_test.name) |
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+---------------+-----------------------+-----------------------+-------------------------+
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| john doe | JOHN DOE | john doe | John Doe |
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| JANE SMITH | JANE SMITH | jane smith | Jane Smith |
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| Bob Wilson | BOB WILSON | bob wilson | Bob Wilson |
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| alice johnson | ALICE JOHNSON | alice johnson | Alice Johnson |
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+---------------+-----------------------+-----------------------+-------------------------+
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SELECT city, UPPER(city), LOWER(city), INITCAP(city) FROM case_test ORDER BY ts;
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+-------------+-----------------------+-----------------------+-------------------------+
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| city | upper(case_test.city) | lower(case_test.city) | initcap(case_test.city) |
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+-------------+-----------------------+-----------------------+-------------------------+
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| new york | NEW YORK | new york | New York |
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| LOS ANGELES | LOS ANGELES | los angeles | Los Angeles |
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| Chicago | CHICAGO | chicago | Chicago |
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| BOSTON | BOSTON | boston | Boston |
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+-------------+-----------------------+-----------------------+-------------------------+
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-- Combined case operations
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SELECT INITCAP(LOWER("name")) as formatted_name FROM case_test ORDER BY ts;
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+----------------+
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| formatted_name |
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+----------------+
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| John Doe |
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| Jane Smith |
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| Bob Wilson |
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| Alice Johnson |
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+----------------+
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-- Unicode case conversion
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SELECT UPPER('café');
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+---------------------+
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| upper(Utf8("café")) |
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+---------------------+
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| CAFÉ |
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+---------------------+
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SELECT LOWER('CAFÉ');
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+---------------------+
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| lower(Utf8("CAFÉ")) |
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+---------------------+
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| café |
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+---------------------+
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-- German characters
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SELECT UPPER('äöüß');
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+---------------------+
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| upper(Utf8("äöüß")) |
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+---------------------+
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| ÄÖÜSS |
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+---------------------+
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-- German uppercase
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SELECT LOWER('ÄÖÜ');
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+--------------------+
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| lower(Utf8("ÄÖÜ")) |
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+--------------------+
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| äöü |
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+--------------------+
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-- Greek letters
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SELECT UPPER('αβγ');
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+--------------------+
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| upper(Utf8("αβγ")) |
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+--------------------+
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| ΑΒΓ |
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+--------------------+
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SELECT LOWER('ΑΒΓ');
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+--------------------+
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| lower(Utf8("ΑΒΓ")) |
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+--------------------+
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| αβγ |
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+--------------------+
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-- Test with empty string
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SELECT UPPER('');
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+-----------------+
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| upper(Utf8("")) |
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+-----------------+
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+-----------------+
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SELECT LOWER('');
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+-----------------+
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| lower(Utf8("")) |
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+-----------------+
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+-----------------+
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SELECT INITCAP('');
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+-------------------+
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| initcap(Utf8("")) |
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+-------------------+
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+-------------------+
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-- Test with single characters
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SELECT UPPER('a'), UPPER('A'), UPPER('1'), UPPER(' ');
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+------------------+------------------+------------------+------------------+
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| upper(Utf8("a")) | upper(Utf8("A")) | upper(Utf8("1")) | upper(Utf8(" ")) |
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+------------------+------------------+------------------+------------------+
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| A | A | 1 | |
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+------------------+------------------+------------------+------------------+
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SELECT LOWER('a'), LOWER('A'), LOWER('1'), LOWER(' ');
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+------------------+------------------+------------------+------------------+
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| lower(Utf8("a")) | lower(Utf8("A")) | lower(Utf8("1")) | lower(Utf8(" ")) |
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+------------------+------------------+------------------+------------------+
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| a | a | 1 | |
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+------------------+------------------+------------------+------------------+
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SELECT INITCAP('a'), INITCAP('A'), INITCAP('1');
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+--------------------+--------------------+--------------------+
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| initcap(Utf8("a")) | initcap(Utf8("A")) | initcap(Utf8("1")) |
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+--------------------+--------------------+--------------------+
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| A | A | 1 |
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+--------------------+--------------------+--------------------+
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-- Complex Unicode examples
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CREATE TABLE unicode_case(s VARCHAR, ts TIMESTAMP TIME INDEX);
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Affected Rows: 0
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INSERT INTO unicode_case VALUES
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('hello 世界', 1000),
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('HELLO 世界', 2000),
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('café à paris', 3000),
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('CAFÉ À PARIS', 4000);
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Affected Rows: 4
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SELECT s, UPPER(s), LOWER(s), INITCAP(s) FROM unicode_case ORDER BY ts;
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+--------------+-----------------------+-----------------------+-------------------------+
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| s | upper(unicode_case.s) | lower(unicode_case.s) | initcap(unicode_case.s) |
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+--------------+-----------------------+-----------------------+-------------------------+
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| hello 世界 | HELLO 世界 | hello 世界 | Hello 世界 |
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| HELLO 世界 | HELLO 世界 | hello 世界 | Hello 世界 |
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| café à paris | CAFÉ À PARIS | café à paris | Café À Paris |
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| CAFÉ À PARIS | CAFÉ À PARIS | café à paris | Café À Paris |
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+--------------+-----------------------+-----------------------+-------------------------+
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DROP TABLE case_test;
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Affected Rows: 0
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DROP TABLE unicode_case;
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Affected Rows: 0
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