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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>
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dennis zhuang
GitHub
@@ -0,0 +1,213 @@
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-- Migrated from DuckDB test: test/sql/function/string/test_string_split.test
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-- String split function tests
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-- Test basic string_split functionality
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SELECT string_to_array(NULL, NULL);
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+----------------------------+
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| string_to_array(NULL,NULL) |
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+----------------------------+
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| |
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+----------------------------+
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SELECT string_to_array('hello world', ' ');
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+------------------------------------------------+
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| string_to_array(Utf8("hello world"),Utf8(" ")) |
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+------------------------------------------------+
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| [hello, world] |
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+------------------------------------------------+
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SELECT string_to_array(NULL, ' ');
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+---------------------------------+
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| string_to_array(NULL,Utf8(" ")) |
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+---------------------------------+
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| |
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+---------------------------------+
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SELECT string_to_array('a b c', NULL);
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+-------------------------------------+
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| string_to_array(Utf8("a b c"),NULL) |
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+-------------------------------------+
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| [a, , b, , c] |
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+-------------------------------------+
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SELECT string_to_array('a b c', ' ');
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+------------------------------------------+
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| string_to_array(Utf8("a b c"),Utf8(" ")) |
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+------------------------------------------+
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| [a, b, c] |
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+------------------------------------------+
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-- Test with table data
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CREATE TABLE split_test(s VARCHAR, ts TIMESTAMP TIME INDEX);
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Affected Rows: 0
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INSERT INTO split_test VALUES
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('hello,world,test', 1000),
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('a|b|c|d', 2000),
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('no-separator', 3000),
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('', 4000),
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(NULL, 5000);
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Affected Rows: 5
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-- Test splitting with different separators
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SELECT s, string_to_array(s, ',') FROM split_test ORDER BY ts;
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+------------------+-----------------------------------------+
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| s | string_to_array(split_test.s,Utf8(",")) |
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+------------------+-----------------------------------------+
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| hello,world,test | [hello, world, test] |
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| a|b|c|d | [a|b|c|d] |
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| no-separator | [no-separator] |
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| | [] |
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| | |
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+------------------+-----------------------------------------+
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SELECT s, string_to_array(s, '|') FROM split_test ORDER BY ts;
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+------------------+-----------------------------------------+
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| s | string_to_array(split_test.s,Utf8("|")) |
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+------------------+-----------------------------------------+
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| hello,world,test | [hello,world,test] |
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| a|b|c|d | [a, b, c, d] |
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| no-separator | [no-separator] |
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| | [] |
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| | |
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+------------------+-----------------------------------------+
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SELECT s, string_to_array(s, '-') FROM split_test ORDER BY ts;
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+------------------+-----------------------------------------+
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| s | string_to_array(split_test.s,Utf8("-")) |
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+------------------+-----------------------------------------+
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| hello,world,test | [hello,world,test] |
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| a|b|c|d | [a|b|c|d] |
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| no-separator | [no, separator] |
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| | [] |
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| | |
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+------------------+-----------------------------------------+
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-- Test splitting with multi-character separator
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CREATE TABLE multi_sep_test(s VARCHAR, ts TIMESTAMP TIME INDEX);
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Affected Rows: 0
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INSERT INTO multi_sep_test VALUES
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('hello::world::test', 1000),
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('a---b---c', 2000),
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('single', 3000);
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Affected Rows: 3
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SELECT s, string_to_array(s, '::') FROM multi_sep_test ORDER BY ts;
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+--------------------+----------------------------------------------+
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| s | string_to_array(multi_sep_test.s,Utf8("::")) |
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+--------------------+----------------------------------------------+
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| hello::world::test | [hello, world, test] |
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| a---b---c | [a---b---c] |
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| single | [single] |
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+--------------------+----------------------------------------------+
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SELECT s, string_to_array(s, '---') FROM multi_sep_test ORDER BY ts;
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+--------------------+-----------------------------------------------+
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| s | string_to_array(multi_sep_test.s,Utf8("---")) |
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+--------------------+-----------------------------------------------+
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| hello::world::test | [hello::world::test] |
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| a---b---c | [a, b, c] |
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| single | [single] |
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+--------------------+-----------------------------------------------+
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-- Test with Unicode separators
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CREATE TABLE unicode_split_test(s VARCHAR, ts TIMESTAMP TIME INDEX);
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Affected Rows: 0
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INSERT INTO unicode_split_test VALUES
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('hello世world世test', 1000),
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('a🦆b🦆c', 2000);
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Affected Rows: 2
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SELECT s, string_to_array(s, '世') FROM unicode_split_test ORDER BY ts;
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+--------------------+--------------------------------------------------+
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| s | string_to_array(unicode_split_test.s,Utf8("世")) |
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+--------------------+--------------------------------------------------+
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| hello世world世test | [hello, world, test] |
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| a🦆b🦆c | [a🦆b🦆c] |
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+--------------------+--------------------------------------------------+
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SELECT s, string_to_array(s, '🦆') FROM unicode_split_test ORDER BY ts;
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+--------------------+--------------------------------------------------+
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| s | string_to_array(unicode_split_test.s,Utf8("🦆")) |
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+--------------------+--------------------------------------------------+
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| hello世world世test | [hello世world世test] |
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| a🦆b🦆c | [a, b, c] |
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+--------------------+--------------------------------------------------+
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-- Test edge cases
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-- Empty string
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SELECT string_to_array('', ',');
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+-------------------------------------+
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| string_to_array(Utf8(""),Utf8(",")) |
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+-------------------------------------+
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| [] |
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+-------------------------------------+
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-- Empty separator
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SELECT string_to_array('hello', '');
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+-----------------------------------------+
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| string_to_array(Utf8("hello"),Utf8("")) |
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+-----------------------------------------+
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| [hello] |
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+-----------------------------------------+
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-- Multiple consecutive separators
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SELECT string_to_array(',,hello,,world,,', ',');
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+-----------------------------------------------------+
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| string_to_array(Utf8(",,hello,,world,,"),Utf8(",")) |
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+-----------------------------------------------------+
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| [, , hello, , world, , ] |
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+-----------------------------------------------------+
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-- Trailing separator
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SELECT string_to_array('hello,', ',');
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+-------------------------------------------+
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| string_to_array(Utf8("hello,"),Utf8(",")) |
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+-------------------------------------------+
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| [hello, ] |
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+-------------------------------------------+
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-- Leading separator
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SELECT string_to_array(',hello', ',');
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+-------------------------------------------+
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| string_to_array(Utf8(",hello"),Utf8(",")) |
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+-------------------------------------------+
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| [, hello] |
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+-------------------------------------------+
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DROP TABLE split_test;
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Affected Rows: 0
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DROP TABLE multi_sep_test;
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Affected Rows: 0
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DROP TABLE unicode_split_test;
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Affected Rows: 0
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