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branch-2.1: [feat](function) SUBSTRING_INDEX function delimiter supports dynamic #50149#50303

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yiguolei merged 1 commit intobranch-2.1from
auto-pick-50149-branch-2.1
Apr 23, 2025
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branch-2.1: [feat](function) SUBSTRING_INDEX function delimiter supports dynamic #50149#50303
yiguolei merged 1 commit intobranch-2.1from
auto-pick-50149-branch-2.1

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@github-actions github-actions bot commented Apr 22, 2025

Cherry-picked from #50149

@felixwluo
[feat](function) SUBSTRING_INDEX function delimiter supports dynamic (#…
d658584 
…50149)

### What problem does this PR solve?

Problem Summary:

sql
```
SELECT t1.no
      ,t1.sub_str
      ,t1.str
      ,substring_index(t1.str, t1.sub_str, -1)
      ,t2.rst2
FROM (
       SELECT 1 AS no, 'BBB' AS sub_str, 'AAA_01|BBB_02|CCC_03|DDD_04|EEE_05|FFF_06' AS str UNION ALL
       SELECT 2 AS no, 'ccc' AS sub_str, 'zyz_01|zyz_02|CCC_03|qwe_04|qwe_05|qwe_06' AS str UNION ALL
       SELECT 3 AS no, 'DDD' AS sub_str, 'AAA_01|BBB_02|CCC_03|DDD_04|EEE_05|FFF_06' AS str UNION ALL
       SELECT 4 AS no, 'DDD' AS sub_str, 'sgr_01|wsc_02|CCC_03|DDD_04|rfv_05|rgb_06' AS str UNION ALL
       SELECT 5 AS no, 'eee' AS sub_str, 'cdr_01|vfr_02|dfc_03|DDD_04|EEE_05|FFF_06' AS str UNION ALL
       SELECT 6 AS no, 'A_01' AS sub_str, 'AAA_01|dsd_02|ert_03|bgt_04|fgh_05|hyb_06' AS str 
     ) t1
LEFT JOIN (
       SELECT 1 AS no, 'BBB' AS sub_str,  substring_index('AAA_01|BBB_02|CCC_03|DDD_04|EEE_05|FFF_06', 'BBB', -1) AS rst2 UNION ALL
       SELECT 2 AS no, 'ccc' AS sub_str,  substring_index('zyz_01|zyz_02|CCC_03|qwe_04|qwe_05|qwe_06', 'ccc', -1) AS rst2 UNION ALL
       SELECT 3 AS no, 'DDD' AS sub_str,  substring_index('AAA_01|BBB_02|CCC_03|DDD_04|EEE_05|FFF_06', 'DDD', -1) AS rst2 UNION ALL
       SELECT 4 AS no, 'DDD' AS sub_str,  substring_index('sgr_01|wsc_02|CCC_03|DDD_04|rfv_05|rgb_06', 'DDD', -1) AS rst2 UNION ALL
       SELECT 5 AS no, 'eee' AS sub_str,  substring_index('cdr_01|vfr_02|dfc_03|DDD_04|EEE_05|FFF_06', 'eee', -1) AS rst2 UNION ALL
       SELECT 6 AS no, 'A_01' AS sub_str, substring_index('AAA_01|dsd_02|ert_03|bgt_04|fgh_05|hyb_06', 'A_01', -1) AS rst2 
     ) t2
     ON t1.no = t2.no AND t1.sub_str = t2.sub_str
ORDER BY t1.no;
```
previous results for doris:
```
-- master
function except for the first argument, other parameter must be a constant

-- 2.1
+------+---------+-------------------------------------------+-------------------------------------------------+-------------------------------------------+
| no   | sub_str | str                                       | substring_index(`t1`.`str`, `t1`.`sub_str`, -1) | rst2                                      |
+------+---------+-------------------------------------------+-------------------------------------------------+-------------------------------------------+
|    1 | BBB     | AAA_01|BBB_02|CCC_03|DDD_04|EEE_05|FFF_06 | _02|CCC_03|DDD_04|EEE_05|FFF_06                 | _02|CCC_03|DDD_04|EEE_05|FFF_06           |
|    2 | ccc     | zyz_01|zyz_02|CCC_03|qwe_04|qwe_05|qwe_06 | zyz_01|zyz_02|CCC_03|qwe_04|qwe_05|qwe_06       | zyz_01|zyz_02|CCC_03|qwe_04|qwe_05|qwe_06 |
|    3 | DDD     | AAA_01|BBB_02|CCC_03|DDD_04|EEE_05|FFF_06 | _02|CCC_03|DDD_04|EEE_05|FFF_06                 | _04|EEE_05|FFF_06                         |
|    4 | DDD     | sgr_01|wsc_02|CCC_03|DDD_04|rfv_05|rgb_06 | sgr_01|wsc_02|CCC_03|DDD_04|rfv_05|rgb_06       | _04|rfv_05|rgb_06                         |
|    5 | eee     | cdr_01|vfr_02|dfc_03|DDD_04|EEE_05|FFF_06 | cdr_01|vfr_02|dfc_03|DDD_04|EEE_05|FFF_06       | cdr_01|vfr_02|dfc_03|DDD_04|EEE_05|FFF_06 |
|    6 | A_01    | AAA_01|dsd_02|ert_03|bgt_04|fgh_05|hyb_06 | AAA_01|dsd_02|ert_03|bgt_04|fgh_05|hyb_06       | |dsd_02|ert_03|bgt_04|fgh_05|hyb_06       |
+------+---------+-------------------------------------------+-------------------------------------------------+-------------------------------------------+
```

mysql result:
```
+----+---------+-------------------------------------------+-------------------------------------------+-------------------------------------------+
| no | sub_str | str                                       | substring_index(t1.str, t1.sub_str, -1)   | rst2                                      |
+----+---------+-------------------------------------------+-------------------------------------------+-------------------------------------------+
|  1 | BBB     | AAA_01|BBB_02|CCC_03|DDD_04|EEE_05|FFF_06 | _02|CCC_03|DDD_04|EEE_05|FFF_06           | _02|CCC_03|DDD_04|EEE_05|FFF_06           |
|  2 | ccc     | zyz_01|zyz_02|CCC_03|qwe_04|qwe_05|qwe_06 | zyz_01|zyz_02|CCC_03|qwe_04|qwe_05|qwe_06 | zyz_01|zyz_02|CCC_03|qwe_04|qwe_05|qwe_06 |
|  3 | DDD     | AAA_01|BBB_02|CCC_03|DDD_04|EEE_05|FFF_06 | _04|EEE_05|FFF_06                         | _04|EEE_05|FFF_06                         |
|  4 | DDD     | sgr_01|wsc_02|CCC_03|DDD_04|rfv_05|rgb_06 | _04|rfv_05|rgb_06                         | _04|rfv_05|rgb_06                         |
|  5 | eee     | cdr_01|vfr_02|dfc_03|DDD_04|EEE_05|FFF_06 | cdr_01|vfr_02|dfc_03|DDD_04|EEE_05|FFF_06 | cdr_01|vfr_02|dfc_03|DDD_04|EEE_05|FFF_06 |
|  6 | A_01    | AAA_01|dsd_02|ert_03|bgt_04|fgh_05|hyb_06 | |dsd_02|ert_03|bgt_04|fgh_05|hyb_06       | |dsd_02|ert_03|bgt_04|fgh_05|hyb_06       |
+----+---------+-------------------------------------------+-------------------------------------------+-------------------------------------------+
```

current doris results:
```
+------+---------+-------------------------------------------+-------------------------------------------+-------------------------------------------+
| no   | sub_str | str                                       | substring_index(t1.str, t1.sub_str, -1)   | rst2                                      |
+------+---------+-------------------------------------------+-------------------------------------------+-------------------------------------------+
|    1 | BBB     | AAA_01|BBB_02|CCC_03|DDD_04|EEE_05|FFF_06 | _02|CCC_03|DDD_04|EEE_05|FFF_06           | _02|CCC_03|DDD_04|EEE_05|FFF_06           |
|    2 | ccc     | zyz_01|zyz_02|CCC_03|qwe_04|qwe_05|qwe_06 | zyz_01|zyz_02|CCC_03|qwe_04|qwe_05|qwe_06 | zyz_01|zyz_02|CCC_03|qwe_04|qwe_05|qwe_06 |
|    3 | DDD     | AAA_01|BBB_02|CCC_03|DDD_04|EEE_05|FFF_06 | _04|EEE_05|FFF_06                         | _04|EEE_05|FFF_06                         |
|    4 | DDD     | sgr_01|wsc_02|CCC_03|DDD_04|rfv_05|rgb_06 | _04|rfv_05|rgb_06                         | _04|rfv_05|rgb_06                         |
|    5 | eee     | cdr_01|vfr_02|dfc_03|DDD_04|EEE_05|FFF_06 | cdr_01|vfr_02|dfc_03|DDD_04|EEE_05|FFF_06 | cdr_01|vfr_02|dfc_03|DDD_04|EEE_05|FFF_06 |
|    6 | A_01    | AAA_01|dsd_02|ert_03|bgt_04|fgh_05|hyb_06 | |dsd_02|ert_03|bgt_04|fgh_05|hyb_06       | |dsd_02|ert_03|bgt_04|fgh_05|hyb_06       |
+------+---------+-------------------------------------------+-------------------------------------------+-------------------------------------------+
```

now consistent with mysql behavior.
@github-actions github-actions bot requested a review from yiguolei as a code owner April 22, 2025 11:07
@hello-stephen
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hello-stephen commented Apr 22, 2025

Thank you for your contribution to Apache Doris.
Don't know what should be done next? See How to process your PR.

Please clearly describe your PR:

  1. What problem was fixed (it's best to include specific error reporting information). How it was fixed.
  2. Which behaviors were modified. What was the previous behavior, what is it now, why was it modified, and what possible impacts might there be.
  3. What features were added. Why was this function added?
  4. Which code was refactored and why was this part of the code refactored?
  5. Which functions were optimized and what is the difference before and after the optimization?

@dataroaring dataroaring reopened this Apr 22, 2025
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hello-stephen commented Apr 22, 2025

run buildall

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hello-stephen commented Apr 22, 2025

BE UT Coverage Report

Increment line coverage 0.00% (0/44) 🎉

Increment coverage report
Complete coverage report

Category Coverage
Function Coverage 38.80% (10252/26422)
Line Coverage 29.86% (85114/285087)
Region Coverage 28.51% (43867/153874)
Branch Coverage 25.23% (22424/88872)

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hello-stephen commented Apr 22, 2025

BE Regression P0 && UT Coverage Report

Increment line coverage 0.00% (0/44) 🎉

Increment coverage report
Complete coverage report

Category Coverage
Function Coverage
Line Coverage
Region Coverage
Branch Coverage

@felixwluo
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felixwluo commented Apr 22, 2025

run feut

@hello-stephen
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hello-stephen commented Apr 23, 2025

BE Regression P0 && UT Coverage Report

Increment line coverage 0.00% (0/44) 🎉

Increment coverage report
Complete coverage report

Category Coverage
Function Coverage
Line Coverage
Region Coverage
Branch Coverage

@yiguolei yiguolei merged commit 98f5d95 into branch-2.1 Apr 23, 2025
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@github-actions github-actions bot deleted the auto-pick-50149-branch-2.1 branch April 23, 2025 07:00
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