[Feat](Nereids) support string functions fold constant by fe #40441
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Thank you for your contribution to Apache Doris. Since 2024-03-18, the Document has been moved to doris-website. |
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TPC-H: Total hot run time: 38096 ms |
TPC-DS: Total hot run time: 192427 ms |
ClickBench: Total hot run time: 31.91 s |
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TPC-H: Total hot run time: 37836 ms |
TPC-DS: Total hot run time: 192562 ms |
ClickBench: Total hot run time: 32.23 s |
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TPC-H: Total hot run time: 38399 ms |
TPC-DS: Total hot run time: 192774 ms |
ClickBench: Total hot run time: 31.66 s |
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TPC-H: Total hot run time: 38006 ms |
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TPC-H: Total hot run time: 38078 ms |
TPC-DS: Total hot run time: 191376 ms |
ClickBench: Total hot run time: 31.75 s |
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16 tasks
This was referenced Mar 17, 2025
morrySnow
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Mar 21, 2025
…ter by mistake (#49087) ### What problem does this PR solve? Related PR: #40441 Problem Summary: wrong calculation of emoji character length in some String function when do constant folding in FE. For example: select STRLEFT('😊😉👍', 2); should return 😊😉, but fe return 😊 only when folding constant fixed functions: - left - strleft - right - strright - locate - character_length - split_by_string - overlay - replace_empty
Merged
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LiBinfeng-01
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Mar 21, 2025
…ter by mistake (apache#49087) Related PR: apache#40441 Problem Summary: wrong calculation of emoji character length in some String function when do constant folding in FE. For example: select STRLEFT('😊😉👍', 2); should return 😊😉, but fe return 😊 only when folding constant fixed functions: - left - strleft - right - strright - locate - character_length - split_by_string - overlay - replace_empty
16 tasks
LiBinfeng-01
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Mar 21, 2025
…ter by mistake (apache#49087) Related PR: apache#40441 Problem Summary: wrong calculation of emoji character length in some String function when do constant folding in FE. For example: select STRLEFT('😊😉👍', 2); should return 😊😉, but fe return 😊 only when folding constant fixed functions: - left - strleft - right - strright - locate - character_length - split_by_string - overlay - replace_empty
16 tasks
LiBinfeng-01
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Mar 21, 2025
…ter by mistake (apache#49087) Related PR: apache#40441 Problem Summary: wrong calculation of emoji character length in some String function when do constant folding in FE. For example: select STRLEFT('😊😉👍', 2); should return 😊😉, but fe return 😊 only when folding constant fixed functions: - left - strleft - right - strright - locate - character_length - split_by_string - overlay - replace_empty
LiBinfeng-01
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Mar 21, 2025
…ter by mistake (apache#49087) Related PR: apache#40441 Problem Summary: wrong calculation of emoji character length in some String function when do constant folding in FE. For example: select STRLEFT('😊😉👍', 2); should return 😊😉, but fe return 😊 only when folding constant fixed functions: - left - strleft - right - strright - locate - character_length - split_by_string - overlay - replace_empty
yiguolei
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Mar 21, 2025
…emoji character by mistake #49087 (#49344) pick: #49087 Related PR: #40441 Problem Summary: wrong calculation of emoji character length in some String function when do constant folding in FE. For example: select STRLEFT('😊😉👍', 2); should return 😊😉, but fe return 😊 only when folding constant fixed functions: - left - strleft - right - strright - locate - character_length - split_by_string - overlay - replace_empty
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dataroaring
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Mar 27, 2025
…emoji character by mistake #49087 (#49346) pick: #49087 Related PR: #40441 Problem Summary: wrong calculation of emoji character length in some String function when do constant folding in FE. For example: select STRLEFT('😊😉👍', 2); should return 😊😉, but fe return 😊 only when folding constant fixed functions: - left - strleft - right - strright - locate - character_length - split_by_string - overlay - replace_empty
koarz
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Jun 4, 2025
…apache#48783) ### What problem does this PR solve? Related PR: apache#40441 Problem Summary: The delimiters in split-related string functions that have special meanings in regular expressions should be escaped. .$|()[{^?*+\
koarz
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Jun 4, 2025
…pache#48895) ### What problem does this PR solve? Related PR: apache#40441 Problem Summary: if source string do not contains delim, split_part should return NULL
koarz
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Jun 4, 2025
…ter by mistake (apache#49087) ### What problem does this PR solve? Related PR: apache#40441 Problem Summary: wrong calculation of emoji character length in some String function when do constant folding in FE. For example: select STRLEFT('😊😉👍', 2); should return 😊😉, but fe return 😊 only when folding constant fixed functions: - left - strleft - right - strright - locate - character_length - split_by_string - overlay - replace_empty
koarz
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Jun 4, 2025
GoGoWen
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Sep 26, 2025
apache#40744)(apache#40745)(40820) (apache#41837) cherry-pick from master
GoGoWen
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Sep 26, 2025
…e cases apache#45233 (apache#46523) pick: apache#45233 Issue Number: apache#44666 Related PR: apache#40441 Problem Summary: select substring_index('哈哈哈AAA','A', 1); String.split function has second parameter 'limit', which is default zero. When 'limit' is zero, it means it would remove trailing empty strings split of '哈哈哈AAA', which would be '哈哈哈' only. But what we expect is '哈哈哈', '','','' when part function is used by substring index. So we should change splitpart limit to -1 to enable trailing empty character in splitpart list reorganize fold constant of string functions in fe and add more cases
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support string functions fold constant by fe:
Concat, Substring, Length, Lower, Upper, Trim, Ltrim, Rtrim, Replace, Left, Right, Locate,
Instr, Ascii, Bin, ConcatWs, CharacterLength, Initcap, Md5, Md5Sum,
Field, FindInSet, Repeat, Reverse, Space, SplitByChar, SplitByString, SplitPart,
SubstringIndex, Strcmp, StrLeft, StrRight, Overlay, ParseUrl, UrlDecode,
AppendTrailingCharIfAbsent, EndsWith, ExtractUrlParameter, Quote, ReplaceEmpty, Password