CreateQuery test (children 3)
 Identifier test
 Columns definition (children 2)
  ExpressionList (children 1)
   ColumnDeclaration x (children 1)
    DataType Int64
  ExpressionList (children 1)
   Index (children 2)
    Function CAST (children 1)
     ExpressionList (children 2)
      Identifier x
      Literal \'String\'
    Function set (children 1)
     ExpressionList (children 1)
      Literal UInt64_0
 Storage definition (children 3)
  Function MergeTree
  Function tuple (children 1)
   ExpressionList
  Set
