SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function groupArray (children 1)
     ExpressionList (children 1)
      Identifier id
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier tab
   Function hasAnyTokens (children 1)
    ExpressionList (children 2)
     Identifier message
     Function arrayConcat (children 1)
      ExpressionList (children 2)
       Function tokens (children 1)
        ExpressionList (children 3)
         Literal \'cdefg\'
         Literal \'ngrams\'
         Literal UInt64_4
       Function tokens (children 1)
        ExpressionList (children 3)
         Literal \'defgh\'
         Literal \'ngrams\'
         Literal UInt64_4
