You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@flink.apache.org by "Jark Wu (Jira)" <ji...@apache.org> on 2023/04/24 09:51:00 UTC
[jira] [Commented] (FLINK-31908) cast expr to type with not null should not change nullable of expr
[ https://issues.apache.org/jira/browse/FLINK-31908?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17715684#comment-17715684 ]
Jark Wu commented on FLINK-31908:
---------------------------------
Why the return type shouldn't be {{ARRAY<DOUBLE NOT NULL>}}?
> cast expr to type with not null should not change nullable of expr
> -------------------------------------------------------------------
>
> Key: FLINK-31908
> URL: https://issues.apache.org/jira/browse/FLINK-31908
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / API
> Affects Versions: 1.18.0
> Reporter: jackylau
> Priority: Major
>
> {code:java}
> Stream<TestSetSpec> getTestSetSpecs() {
> return Stream.of(
> TestSetSpec.forFunction(BuiltInFunctionDefinitions.CAST)
> .onFieldsWithData(new Integer[]{1, 2}, 3)
> .andDataTypes(DataTypes.ARRAY(INT()), INT())
> .testSqlResult(
> "CAST(f0 AS ARRAY<DOUBLE NOT NULL>)",
> new Double[]{1.0d, 2.0d},
> DataTypes.ARRAY(DOUBLE().notNull())));
> } {code}
> but the result type should DataTypes.ARRAY(DOUBLE())), the root cause is calcite bug
--
This message was sent by Atlassian Jira
(v8.20.10#820010)