CreateQuery test1 (children 3)
 Identifier test1
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration p (children 1)
    DataType DateTime
   ColumnDeclaration k (children 1)
    DataType int
 Storage definition (children 4)
  Function MergeTree
  Function toDate (children 1)
   ExpressionList (children 1)
    Identifier p
  Identifier k
  Set
