CreateQuery test2 (children 3)
 Identifier test2
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration pk (children 1)
    DataType String
   ColumnDeclaration x.y (children 1)
    DataType Decimal (children 1)
     ExpressionList (children 2)
      Literal UInt64_18
      Literal UInt64_4
 Storage definition (children 2)
  Function MergeTree (children 1)
   ExpressionList
  Identifier pk
