CreateQuery test (children 3)
 Identifier test
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration x (children 1)
    DataType UInt64
   ColumnDeclaration \\ (children 2)
    DataType String
    Function concat (children 1)
     ExpressionList (children 2)
      Literal \'\\r\\n\\t\\\\\'
      Literal \' \'
 Storage definition (children 2)
  Function MergeTree
  Identifier x
