message: Issue 193: UCASE and LCASE
  Add synonyms and tests.
diff: @@ -56,10 +56,12 @@ static void caseconvert_lower_function(DataChunk &args, ExpressionState &state,
  void LowerFun::RegisterFunction(BuiltinFunctions &set) {
  set.AddFunction(ScalarFunction("lower", {SQLType::VARCHAR}, SQLType::VARCHAR, caseconvert_lower_function));
  + set.AddFunction(ScalarFunction("lcase", {SQLType::VARCHAR}, SQLType::VARCHAR, caseconvert_lower_function));
  }
  void UpperFun::RegisterFunction(BuiltinFunctions &set) {
  set.AddFunction(ScalarFunction("upper", {SQLType::VARCHAR}, SQLType::VARCHAR, caseconvert_upper_function));
  + set.AddFunction(ScalarFunction("ucase", {SQLType::VARCHAR}, SQLType::VARCHAR, caseconvert_upper_function));
  }
  } // namespace duckdb
  