CreateQuery nested_map (children 3)
 Identifier nested_map
 Columns definition (children 1)
  ExpressionList (children 4)
   ColumnDeclaration d (children 1)
    Function today (children 1)
     ExpressionList
   ColumnDeclaration k (children 1)
    DataType UInt64
   ColumnDeclaration payload (children 1)
    Function rand (children 1)
     ExpressionList
   ColumnDeclaration SomeMap (children 1)
    DataType Nested (children 1)
     ExpressionList (children 2)
      NameTypePair ID (children 1)
       DataType UInt32
      NameTypePair Num (children 1)
       DataType Int64
 Storage definition (children 1)
  Function SummingMergeTree (children 1)
   ExpressionList (children 3)
    Identifier d
    Identifier k
    Literal UInt64_8192
