CreateQuery tab (children 3)
 Identifier tab
 Columns definition (children 2)
  ExpressionList (children 3)
   ColumnDeclaration key (children 1)
    DataType UInt64
   ColumnDeclaration str (children 1)
    DataType String
   ColumnDeclaration other_str (children 1)
    DataType String
  ExpressionList (children 1)
   Index (children 2)
    Identifier str
    Function text (children 1)
     ExpressionList (children 2)
      Function equals (children 1)
       ExpressionList (children 2)
        Identifier tokenizer
        Literal \'splitByNonAlpha\'
      Function equals (children 1)
       ExpressionList (children 2)
        Identifier preprocessor
        Function lower (children 1)
         ExpressionList (children 1)
          Identifier other_str
 Storage definition (children 2)
  Function MergeTree
  Function tuple (children 1)
   ExpressionList
