[feature](csv)Supports reading CSV data using LF and CRLF as line separators.#37687
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morningman merged 9 commits intoapache:masterfrom Jul 18, 2024
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[feature](csv)Supports reading CSV data using LF and CRLF as line separators.#37687morningman merged 9 commits intoapache:masterfrom
morningman merged 9 commits intoapache:masterfrom
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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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| [[nodiscard]] inline size_t line_delimiter_length() const final { return line_delimiter_len; } | ||
| [[nodiscard]] inline size_t line_delimiter_length() const { |
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warning: annotate this function with 'override' or (rarely) 'final' [modernize-use-override]
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| [[nodiscard]] inline size_t line_delimiter_length() const { | |
| [[nodiscard]] inline size_t line_delimiter_length() const override { |
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TPC-H: Total hot run time: 40112 ms |
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TPC-H: Total hot run time: 39877 ms |
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…arators. (apache#37687) Supports reading CSV data using LF and CRLF as line separators. csv file: ``` 1,abc 2,def\r 3,qwe 4,hello\r ``` if you `set keep_carriage_return = false` you will get : ```mysql 1 abc 2 def 3 qwe 4 hello ``` Here, both \r\n and \n are used as delimiters. if you `set keep_carriage_return = true` you will get : ```mysql 1 abc 2 def\r 3 qwe 4 hello\r ``` Here only \n is used as a delimiter. It should be noted that `set keep_carriage_return = true` is valid for tvf, but not for stream load/mysql load. This means that when you perform stream load/mysql load, crlf and lf will be automatically used as delimiters, even if you `set keep_carriage_return = true`.
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…arators. (apache#37687) ## Proposed changes Supports reading CSV data using LF and CRLF as line separators. csv file: ``` 1,abc 2,def\r 3,qwe 4,hello\r ``` if you `set keep_carriage_return = false` you will get : ```mysql 1 abc 2 def 3 qwe 4 hello ``` Here, both \r\n and \n are used as delimiters. if you `set keep_carriage_return = true` you will get : ```mysql 1 abc 2 def\r 3 qwe 4 hello\r ``` Here only \n is used as a delimiter. ## warning It should be noted that `set keep_carriage_return = true` is valid for tvf, but not for stream load/mysql load. This means that when you perform stream load/mysql load, crlf and lf will be automatically used as delimiters, even if you `set keep_carriage_return = true`.
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…arators. (apache#37687) ## Proposed changes Supports reading CSV data using LF and CRLF as line separators. csv file: ``` 1,abc 2,def\r 3,qwe 4,hello\r ``` if you `set keep_carriage_return = false` you will get : ```mysql 1 abc 2 def 3 qwe 4 hello ``` Here, both \r\n and \n are used as delimiters. if you `set keep_carriage_return = true` you will get : ```mysql 1 abc 2 def\r 3 qwe 4 hello\r ``` Here only \n is used as a delimiter. ## warning It should be noted that `set keep_carriage_return = true` is valid for tvf, but not for stream load/mysql load. This means that when you perform stream load/mysql load, crlf and lf will be automatically used as delimiters, even if you `set keep_carriage_return = true`.
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Proposed changes
Supports reading CSV data using LF and CRLF as line separators.
csv file:
if you
set keep_carriage_return = falseyou will get :
Here, both \r\n and \n are used as delimiters.
if you
set keep_carriage_return = trueyou will get :
Here only \n is used as a delimiter.
warning
It should be noted that
set keep_carriage_return = trueis valid for tvf, but not for stream load/mysql load. This means that when you perform stream load/mysql load, crlf and lf will be automatically used as delimiters, even if youset keep_carriage_return = true.Issue Number: close #xxx