CreateQuery t_column_names (children 3)
 Identifier t_column_names
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration arr (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType UInt64
   ColumnDeclaration n (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType String
 Storage definition (children 1)
  Function Memory
