[enhance](hive) support reading hive table with OpenCSVSerde #42257
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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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run buildall |
TPC-H: Total hot run time: 41344 ms |
TPC-DS: Total hot run time: 191462 ms |
ClickBench: Total hot run time: 32.48 s |
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run buildall |
TPC-H: Total hot run time: 41015 ms |
TPC-DS: Total hot run time: 191816 ms |
ClickBench: Total hot run time: 33.09 s |
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PR approved by at least one committer and no changes requested. |
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CalvinKirs
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…42257) ## Proposed changes OpenCSVSerde Properties: | **Property** | **Description** | **Default Value** | **Supported in Doris** | |---------------------------------------|---------------------------------------------------------------------------------------------------|-------------------|--------------------------| | `separatorChar` | Defines the character used to separate fields (columns) in a CSV file. | `,` | Yes | | `quoteChar` | Defines the character used to quote fields that contain special characters, like the separator. | `"` | Yes | | `escapeChar` | Specifies the escape character used for escaping special characters, including quotes and delimiters. | `"` | Yes | ### Explanation: - **`separatorChar`**: This property defines the character that separates columns in the CSV file. Typically, a comma (`,`) is used as the default separator. - **`quoteChar`**: This character is used to enclose fields that contain special characters (like the separator). For example, if a field contains a comma, it is enclosed in quotes (`"`). - **`escapeChar`**: Specifies the character used to escape special characters, such as quotes or the separator. In many cases, a backslash (`\\`) is used as the escape character.
morningman
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…42257) ## Proposed changes OpenCSVSerde Properties: | **Property** | **Description** | **Default Value** | **Supported in Doris** | |---------------------------------------|---------------------------------------------------------------------------------------------------|-------------------|--------------------------| | `separatorChar` | Defines the character used to separate fields (columns) in a CSV file. | `,` | Yes | | `quoteChar` | Defines the character used to quote fields that contain special characters, like the separator. | `"` | Yes | | `escapeChar` | Specifies the escape character used for escaping special characters, including quotes and delimiters. | `"` | Yes | ### Explanation: - **`separatorChar`**: This property defines the character that separates columns in the CSV file. Typically, a comma (`,`) is used as the default separator. - **`quoteChar`**: This character is used to enclose fields that contain special characters (like the separator). For example, if a field contains a comma, it is enclosed in quotes (`"`). - **`escapeChar`**: Specifies the character used to escape special characters, such as quotes or the separator. In many cases, a backslash (`\\`) is used as the escape character.
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…42942) cherry pick from #42257 Co-authored-by: Socrates <[email protected]>
morningman
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…42940) cherry pick from #42257 Co-authored-by: Socrates <[email protected]>
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Proposed changes
OpenCSVSerde Properties:
separatorChar,quoteChar"escapeChar"Explanation:
separatorChar: This property defines the character that separates columns in the CSV file. Typically, a comma (,) is used as the default separator.quoteChar: This character is used to enclose fields that contain special characters (like the separator). For example, if a field contains a comma, it is enclosed in quotes (").escapeChar: Specifies the character used to escape special characters, such as quotes or the separator. In many cases, a backslash (\\) is used as the escape character.