[GitHub] [arrow] Dandandan edited a comment on pull request #8892: ARROW-10817: [Rust] [DataFusion] Implement TypedString and DATE coercion

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Dandandan edited a comment on pull request #8892:
URL: https://github.com/apache/arrow/pull/8892#issuecomment-744038027


   @andygrove I am actually expecting that comparison on date (in ms since epoch / int64) should be faster than on strings (if no weird implementation)?
   
   @seddonm1 unfortunately I am getting an error on master, as the CSV reader doesn't support dates yet.
   
   ```
   Running benchmarks with the following options: BenchmarkOpt { query: 10, debug: false, iterations: 10, concurrency: 10, batch_size: 20000, path: "/home/danielheres/Code/gdd/arrow/rust/benchmarks/tpch-dbgen", file_format: "tbl", mem_table: true }
   Loading table 'part' into memory
   Loaded table 'part' into memory in 157 ms
   Loading table 'supplier' into memory
   Loaded table 'supplier' into memory in 12 ms
   Loading table 'partsupp' into memory
   Loaded table 'partsupp' into memory in 553 ms
   Loading table 'customer' into memory
   Loaded table 'customer' into memory in 139 ms
   Loading table 'orders' into memory
   Error: ArrowError(ParseError("Unsupported data type Date32(Day)"))
   ```


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