CreateQuery tab (children 3)
 Identifier tab
 Columns definition (children 2)
  ExpressionList (children 2)
   ColumnDeclaration id (children 1)
    DataType UInt64
   ColumnDeclaration str (children 1)
    DataType String
  ExpressionList (children 1)
   Index (children 2)
    Identifier str
    Function text (children 1)
     ExpressionList (children 1)
      Function equals (children 1)
       ExpressionList (children 2)
        Identifier tokenizer
        Identifier splitByNonAlpha
 Storage definition (children 4)
  Function MergeTree
  Identifier id
  Identifier id
  Set