CreateQuery mt_with_pk (children 3)
 Identifier mt_with_pk
 Columns definition (children 1)
  ExpressionList (children 6)
   ColumnDeclaration d (children 2)
    DataType Date
    Literal \'2000-01-01\'
   ColumnDeclaration x (children 1)
    DataType DateTime
   ColumnDeclaration y (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType UInt64
   ColumnDeclaration z (children 1)
    DataType UInt64
   ColumnDeclaration n (children 1)
    DataType Nested (children 1)
     ExpressionList (children 2)
      NameTypePair Age (children 1)
       DataType UInt8
      NameTypePair Name (children 1)
       DataType String
   ColumnDeclaration w (children 2)
    DataType Int16
    Literal UInt64_10
 Storage definition (children 4)
  Function MergeTree (children 1)
   ExpressionList
  Function toYYYYMM (children 1)
   ExpressionList (children 1)
    Identifier d
  Function tuple (children 1)
   ExpressionList (children 2)
    Identifier x
    Identifier z
  Set