alamb commented on issue #4913: URL: https://github.com/apache/arrow-datafusion/issues/4913#issuecomment-1383141864
Hi @xiaoyong-z -- I don't know of anyone working on this Note datafusion already supports `describe` and selecting from parquet files (in datafusion-cli -- https://github.com/apache/arrow-datafusion/issues/4850 tracks supporting it more generally and I think that @matthewwillian said he was looking into) I actually would have expected `describe <foo.parquet>` to work as it should simply be working using the existing table provider machinery. However, when I tried it: ```shell cargo run datafusion-cli ``` It did not: ```sql ❯ describe '/Users/alamb/Software/duckdb-polr/tools/juliapkg/data/invoice.parquet'; 0 rows in set. Query took 0.002 seconds. ❯ select * from '/Users/alamb/Software/duckdb-polr/tools/juliapkg/data/invoice.parquet' limit 10; +-----------+------------+-----------------------------------------------+-------------------------+-------------+--------------+----------------+-------------------+-------+ | InvoiceId | CustomerId | InvoiceDate | BillingAddress | BillingCity | BillingState | BillingCountry | BillingPostalCode | Total | +-----------+------------+-----------------------------------------------+-------------------------+-------------+--------------+----------------+-------------------+-------+ | 1 | 2 | 2007-01-01T00:00:00 (Unknown Time Zone 'UTC') | Theodor-Heuss-Straße 34 | Stuttgart | | Germany | 70174 | 1.98 | | 2 | 4 | 2007-01-02T00:00:00 (Unknown Time Zone 'UTC') | Ullevålsveien 14 | Oslo | | Norway | 0171 | 3.95 | | 3 | 8 | 2007-01-03T00:00:00 (Unknown Time Zone 'UTC') | Grétrystraat 63 | Brussels | | Belgium | 1000 | 5.94 | | 4 | 14 | 2007-01-06T00:00:00 (Unknown Time Zone 'UTC') | 8210 111 ST NW | Edmonton | AB | Canada | T6G 2C7 | 8.91 | | 5 | 23 | 2007-01-11T00:00:00 (Unknown Time Zone 'UTC') | 69 Salem Street | Boston | MA | USA | 2113 | 13.85 | | 6 | 37 | 2007-01-19T00:00:00 (Unknown Time Zone 'UTC') | Berger Straße 10 | Frankfurt | | Germany | 60316 | 0.99 | | 7 | 38 | 2007-02-01T00:00:00 (Unknown Time Zone 'UTC') | Barbarossastraße 19 | Berlin | | Germany | 10779 | 1.98 | | 8 | 40 | 2007-02-01T00:00:00 (Unknown Time Zone 'UTC') | 8, Rue Hanovre | Paris | | France | 75002 | 1.98 | | 9 | 42 | 2007-02-02T00:00:00 (Unknown Time Zone 'UTC') | 9, Place Louis Barthou | Bordeaux | | France | 33000 | 3.95 | | 10 | 46 | 2007-02-03T00:00:00 (Unknown Time Zone 'UTC') | 3 Chatham Street | Dublin | Dublin | Ireland | | 5.94 | +-----------+------------+-----------------------------------------------+-------------------------+-------------+--------------+----------------+-------------------+-------+ 10 rows in set. Query took 0.003 seconds. ```` -- 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: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
