[ https://issues.apache.org/jira/browse/FLINK-13284?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
lincoln lee closed FLINK-13284. ------------------------------- > Correct some builtin functions' return type inference in Blink planner > ---------------------------------------------------------------------- > > Key: FLINK-13284 > URL: https://issues.apache.org/jira/browse/FLINK-13284 > Project: Flink > Issue Type: Bug > Components: Table SQL / Planner > Affects Versions: 1.9.0 > Reporter: lincoln lee > Assignee: lincoln lee > Priority: Major > Labels: pull-request-available > Fix For: 1.9.0 > > Time Spent: 10m > Remaining Estimate: 0h > > Several builtin functions in Blink planner such as > {code:java} > DATE_FORMAT{code} > declares > {code:java} > ReturnTypes.cascade(ReturnTypes.explicit(SqlTypeName.VARCHAR), > SqlTypeTransforms.TO_NULLABLE){code} > which should be > {code:java} > ReturnTypes.cascade(ReturnTypes.explicit(SqlTypeName.VARCHAR), > SqlTypeTransforms.FORCE_NULLABLE){code} > instead. -- This message was sent by Atlassian Jira (v8.20.10#820010)