CreateQuery sum_map_overflow (children 3)
 Identifier sum_map_overflow
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration events (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType UInt8
   ColumnDeclaration counts (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType UInt8
 Storage definition (children 2)
  Function MergeTree
  Function tuple (children 1)
   ExpressionList