feat: adds regex_extract function and more type tests (#7107)

* 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>
2026-10-30 15:36:59 +00:00 · 2025-10-25 08:41:49 +00:00
parent 7da2f5ed12
commit d8563ba56d
58 changed files with 6502 additions and 15 deletions
@@ -0,0 +1,88 @@
+-- String TRIM and PAD function tests
+
+-- TRIM functions
+SELECT TRIM('  hello world  ');
+
+SELECT LTRIM('  hello world  ');
+
+SELECT RTRIM('  hello world  ');
+
+-- TRIM with specific characters
+SELECT TRIM('x' FROM 'xxxhello worldxxx');
+
+SELECT LTRIM('hello world', 'hel');
+
+SELECT RTRIM('hello world', 'dlr');
+
+-- PAD functions
+SELECT LPAD('hello', 10, '*');
+
+SELECT RPAD('hello', 10, '*');
+
+-- Truncate
+SELECT LPAD('hello', 3, '*');
+
+-- Truncate  
+SELECT RPAD('hello', 3, '*');
+
+-- PAD with multi-character padding
+SELECT LPAD('test', 10, 'ab');
+
+SELECT RPAD('test', 10, 'xy');
+
+-- Test with table data
+CREATE TABLE trim_pad_test(s VARCHAR, ts TIMESTAMP TIME INDEX);
+
+INSERT INTO trim_pad_test VALUES
+    ('  hello  ', 1000),
+    ('world   ', 2000),
+    ('   test', 3000),
+    ('no-spaces', 4000),
+    ('', 5000),
+    (NULL, 6000);
+
+-- Apply TRIM functions to table data
+SELECT s, TRIM(s), LTRIM(s), RTRIM(s) FROM trim_pad_test ORDER BY ts;
+
+-- Apply PAD functions
+SELECT s, LPAD(TRIM(s), 15, '-'), RPAD(TRIM(s), 15, '+') FROM trim_pad_test WHERE s IS NOT NULL ORDER BY ts;
+
+-- Test with Unicode characters
+SELECT TRIM('  中文测试  ');
+
+SELECT LPAD('🚀', 10, '★');
+
+SELECT RPAD('café', 8, '•');
+
+-- Edge cases
+SELECT TRIM('');
+
+SELECT TRIM(NULL);
+SELECT LPAD('', 5, '*');
+
+SELECT RPAD('', 5, '*');
+
+SELECT LPAD('test', 0, '*');
+
+SELECT RPAD('test', 0, '*');
+
+-- TRIM with various whitespace characters
+SELECT TRIM('\t\nhello\r\n\t');
+
+SELECT LTRIM('\t\nhello world');
+
+SELECT RTRIM('hello world\r\n');
+
+-- Custom TRIM characters
+CREATE TABLE custom_trim(s VARCHAR, ts TIMESTAMP TIME INDEX);
+
+INSERT INTO custom_trim VALUES
+    ('***hello***', 1000),
+    ('---world---', 2000),
+    ('abcTESTabc', 3000);
+
+SELECT s, TRIM('*' FROM s), TRIM('-' FROM s), TRIM('abc' FROM s) FROM custom_trim ORDER BY ts;
+
+DROP TABLE trim_pad_test;
+
+DROP TABLE custom_trim;