[jira] [Commented] (FLINK-9688) ATAN2 Sql Function support

["Fabian Hueske (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-9688?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16526161#comment-16526161 ] 

Fabian Hueske commented on FLINK-9688:
--------------------------------------

This is issue requests a new feature. The {{ATAN2}} is not support yet. Adding it is a new feature.
It would be a bug if the function was already supported but computing an incorrect result.

> ATAN2 Sql Function support
> --------------------------
>
>                 Key: FLINK-9688
>                 URL: https://issues.apache.org/jira/browse/FLINK-9688
>             Project: Flink
>          Issue Type: New Feature
>          Components: Table API & SQL
>            Reporter: Sergey Nuyanzin
>            Assignee: Sergey Nuyanzin
>            Priority: Minor
>
> simple query fails {code}
> ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
> BatchTableEnvironment tableEnv = TableEnvironment.getTableEnvironment(env, config());
> DataSet<Tuple3<Integer, Long, String>> ds = CollectionDataSets.get3TupleDataSet(env);
> tableEnv.registerDataSet("t1", ds, "x, y, z");
> String sqlQuery = "SELECT atan2(1,2)";
> Table result = tableEnv.sqlQuery(sqlQuery);
> {code}
> while at the same time Calcite supports it and in Calcite's sqlline it works like {noformat}
> 0: jdbc:calcite:model=target/test-classes/mod> select atan2(1,2);
> +-----------------+
> |     EXPR$0      |
> +-----------------+
> | 0.4636476090008061 |
> +-----------------+
> 1 row selected (0.173 seconds)
> {noformat}



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