liukun4515 commented on issue #926: URL: https://github.com/apache/arrow-rs/issues/926#issuecomment-966208845
> thanks for the issue @liukun4515 however i don't think this is doable as is. > > by default numbers are read into f64 but not decimal because for decimal you'll need to have a precision configured. that can't be inferred from the csv data itself. if you do need to do that either read as f64 and convert yourself (using cast) or pre-convert the data as parquet so that arrow can be correctly mapped. The precision is a problem, i found the issue from the datafusion when i use this sql to create a table. `CREATE EXTERNAL TABLE food (a DECIMAL(10,0), b INT) STORED AS CSV LOCATION 'data.csv';` I can read data from the csv file, so i want to implement the feature to support decimal data from csv file. I think if user provide the schema with decimal data type, we should read csv file data and convert them to decimal type. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: github-unsubscr...@arrow.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
