CreateQuery test_aggregation (children 3)
 Identifier test_aggregation
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration x (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType Decimal64 (children 1)
       ExpressionList (children 1)
        Literal UInt64_8
 Storage definition (children 1)
  Function TinyLog