session_id: "3baaf123-80a1-4cdf-9896-5fc6f62868d9"
plan {
  root {
    common {
      plan_id: 9
    }
    sort {
      input {
        common {
          plan_id: 8
        }
        aggregate {
          input {
            common {
              plan_id: 7
            }
            with_columns {
              input {
                common {
                }
                with_columns {
                }
              }
              aliases {
                expr {
                }
                name: "weighted_amount"
              }
            }
          }
          group_type: GROUP_TYPE_GROUPBY
          grouping_expressions {
            unresolved_attribute {
              unparsed_identifier: "segment"
              is_metadata_column: false
            }
            common {
              origin {
                python_origin {
                }
              }
            }
          }
          grouping_expressions {
            unresolved_attribute {
              unparsed_identifier: "processing_day"
              is_metadata_column: false
            }
            common {
              origin {
                python_origin {
                }
              }
            }
          }
          aggregate_expressions {
            alias {
              expr {
                unresolved_function {
                }
              }
              name: "row_count"
            }
            common {
              origin {
                python_origin {
                }
              }
            }
          }
          aggregate_expressions {
            alias {
              expr {
                unresolved_function {
                }
              }
              name: "unique_customers"
            }
            common {
              origin {
                python_origin {
                }
              }
            }
          }
          aggregate_expressions {
            alias {
              expr {
                unresolved_function {
                }
              }
 ...