Youjun Yuan created CALCITE-3395: ------------------------------------ Summary: add BuiltinMethod for Substring(String, int) Key: CALCITE-3395 URL: https://issues.apache.org/jira/browse/CALCITE-3395 Project: Calcite Issue Type: Improvement Components: core Reporter: Youjun Yuan
substring function has two versoins: 1, Substring(String, int, int) 2, Substring(String, int) currently in BuiltinMethod.java, only the first one is defined. Need to define the second one as well, so that we can use both of them. Apache Flink(FunctionGenerator.scala), reference the BuiltinMethod, since Calcite only defines 1, not 2, Flink always resolve SUBSTRING to Substring(String, int, int) even if there is only 2 parameters. This problem happens to be covered by method overloading of java, but it's still a potential problem. -- This message was sent by Atlassian Jira (v8.3.4#803005)