CreateQuery t_sparse (children 3)
 Identifier t_sparse
 Columns definition (children 1)
  ExpressionList (children 5)
   ColumnDeclaration id (children 1)
    DataType UInt64
   ColumnDeclaration u (children 1)
    DataType UInt64
   ColumnDeclaration s (children 1)
    DataType String
   ColumnDeclaration arr1 (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType String
   ColumnDeclaration arr2 (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType UInt64
 Storage definition (children 3)
  Function MergeTree
  Function tuple (children 1)
   ExpressionList
  Set