CreateQuery test (children 3)
 Identifier test
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration key (children 1)
    DataType UInt32
   ColumnDeclaration arr (children 2)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType UInt32
    Literal Array_[UInt64_1, UInt64_2]
   ColumnDeclaration xx (children 2)
    DataType UInt32
    Function arrayElement (children 1)
     ExpressionList (children 2)
      Identifier arr
      Literal UInt64_1
 Storage definition (children 3)
  Function MergeTree
  Function tuple (children 1)
   ExpressionList
  Function tuple (children 1)
   ExpressionList
