CreateQuery tab (children 3)
 Identifier tab
 Columns definition (children 2)
  ExpressionList (children 2)
   ColumnDeclaration id (children 1)
    DataType UInt32
   ColumnDeclaration message (children 1)
    DataType String
  ExpressionList (children 1)
   Index (children 2)
    Identifier message
    Function text (children 1)
     ExpressionList (children 1)
      Function equals (children 1)
       ExpressionList (children 2)
        Identifier tokenizer
        Identifier splitByNonAlpha
 Storage definition (children 2)
  Function MergeTree
  Identifier id
