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  1. Apache Arrow
  2. ARROW-12306

[Rust] Read CSV format text from stdin or memory

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      Hello,

      I'm building a command line tool that can run SQL queries on text files (csv, json-line ..) . But the `CsvExec` in datafusion can only read csv text from files currently. I have checked its inner implantation the csv reader in arrow, anything impl `Read` could be a valid input.

       

      Should this feature ( read csv from stdin) come with datafusion ? Or I just make it into my own crate.

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              Unassigned Unassigned
              heymind Siwei
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