CreateQuery tab (children 3)
 Identifier tab
 Columns definition (children 2)
  ExpressionList (children 1)
   ColumnDeclaration 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 dictionary_block_frontcoding_compression
        Literal UInt64_2
 Storage definition (children 2)
  Function MergeTree
  Function tuple (children 1)
   ExpressionList
