CreateQuery rings (children 3)
 Identifier rings
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration ring (children 1)
    DataType Ring
   ColumnDeclaration reference (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType String
 Storage definition (children 2)
  Function MergeTree
  Function tuple (children 1)
   ExpressionList
