You are viewing a plain text version of this content. The canonical link for it is here.
Posted to jira@arrow.apache.org by "Andrew Lamb (Jira)" <ji...@apache.org> on 2021/04/09 18:15:00 UTC
[jira] [Updated] (ARROW-12312) [Rust][DataFusion] COUNT DISTINCT
does not support for `Float64`
[ https://issues.apache.org/jira/browse/ARROW-12312?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andrew Lamb updated ARROW-12312:
--------------------------------
Summary: [Rust][DataFusion] COUNT DISTINCT does not support for `Float64` (was: [Rust][DataFusion] COUNT DISTINCT not support for `Float64`)
> [Rust][DataFusion] COUNT DISTINCT does not support for `Float64`
> ----------------------------------------------------------------
>
> Key: ARROW-12312
> URL: https://issues.apache.org/jira/browse/ARROW-12312
> Project: Apache Arrow
> Issue Type: Bug
> Components: Rust - DataFusion
> Reporter: Andrew Lamb
> Priority: Major
>
> If you try to run a `COUNT (DISTINCT ..)` query on a float column you get the following error:
> thread 'tokio-runtime-worker' panicked at 'Unexpected DataType for list', datafusion/src/scalar.rs:342:22
> Reproducer:
> {code}
> echo "foo,1.23" > /tmp/foo.csv
> ./target/debug/datafusion-cli
> > CREATE EXTERNAL TABLE t (a varchar, b float) STORED AS CSV LOCATION '/tmp/foo.csv';
> 0 rows in set. Query took 0 seconds.
> > select count(distinct a) from t;
> +-------------------+
> | COUNT(DISTINCT a) |
> +-------------------+
> | 1 |
> +-------------------+
> 1 rows in set. Query took 0 seconds.
> > select count(distinct b) from t;
> thread 'tokio-runtime-worker' panicked at 'Unexpected DataType for list', datafusion/src/scalar.rs:342:22
> note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
> ArrowError(ExternalError(Canceled))
> {code}
--
This message was sent by Atlassian Jira
(v8.3.4#803005)