CreateQuery tab (children 3)
 Identifier tab
 Columns definition (children 2)
  ExpressionList (children 2)
   ColumnDeclaration k (children 1)
    DataType UInt64
   ColumnDeclaration text (children 1)
    DataType String
  ExpressionList (children 1)
   Index (children 2)
    Identifier text
    Function text (children 1)
     ExpressionList (children 1)
      Function equals (children 1)
       ExpressionList (children 2)
        Identifier tokenizer
        Literal \'splitByNonAlpha\'
 Storage definition (children 3)
  Function MergeTree (children 1)
   ExpressionList
  Identifier k
  Set
