CreateQuery t_01411 (children 3)
 Identifier t_01411
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration str (children 1)
    DataType LowCardinality (children 1)
     ExpressionList (children 1)
      DataType String
   ColumnDeclaration arr (children 2)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType LowCardinality (children 1)
       ExpressionList (children 1)
        DataType String
    Function array (children 1)
     ExpressionList (children 1)
      Identifier str
 Storage definition (children 3)
  Function MergeTree (children 1)
   ExpressionList
  Function tuple (children 1)
   ExpressionList
  Set
