Jark Wu created FLINK-5225: ------------------------------ Summary: Add interface to override parameter types of UDTF's eval method Key: FLINK-5225 URL: https://issues.apache.org/jira/browse/FLINK-5225 Project: Flink Issue Type: Improvement Reporter: Jark Wu
{{ScalarFunction}} has {{getParameterTypes()}} to be overridden if the parameter types of the eval method can not be determined automatically. This is missing in {{TableFunction}}. This needs to implement a custom Calcite's {{TableFunction}} and override {{getParameters()}}. But currently, the {{FlinkTableFunctionImpl}} extends {{ReflectiveFunctionBase}}, the {{ReflectiveFunctionBase}} determines the parameter types of the eval method. -- This message was sent by Atlassian JIRA (v6.3.4#6332)