Vladimir Sitnikov created CALCITE-4371: ------------------------------------------
Summary: TableMacro and TableFunction should have List<? extends Objects> rather than List<Object> parameters Key: CALCITE-4371 URL: https://issues.apache.org/jira/browse/CALCITE-4371 Project: Calcite Issue Type: Sub-task Components: core Affects Versions: 1.26.0 Reporter: Vladimir Sitnikov Assignee: Vladimir Sitnikov Currently, the functions are declared as follows: {code:java}public interface TableMacro extends Function { /** * Applies arguments to yield a table. * * @param arguments Arguments * @return Table */ TranslatableTable apply(List<Object> arguments); } {code} That means the method can't be called with {{List<String>}} parameter. It makes sense to adjust the parameter type to {{List<? extends Object>}}, then the call with {{List<String>}} would succeed. Note: this is source-incompatible change. So all the classes that implement TableMacro and TableFunction would need to be adjusted. Calcite codebase has <10 such classes, so I believe it should be ok. -- This message was sent by Atlassian Jira (v8.3.4#803005)