GitHub user saha23412 edited a discussion: Compilation of query data for a POST 
request

I want to make a query to build a multi-level X-axis.
How to create a post_processing for a chart/data POST request with type 
result_type: "results", the screenshot shows an example of an array that stores 
ds and TAXI_OUT, how to correctly form 
queries[0].post_processing to get the data for "results"?I want to get the 
values of the ds and TAXI_OUT axes?

<img width="213" height="88" alt="image" 
src="https://github.com/user-attachments/assets/bca6a831-1c98-4f15-870c-e4727bd1a618";
 />

With this kind of Json, a strange result is obtained:
`queries:[
    {
        "filters": [
            {
                "col": "ds",
                "op": "TEMPORAL_RANGE",
                "val": "No filter"
            }
        ],
        "extras": {
            "time_grain_sqla": "P1D",
            "having": "",
            "where": ""
        },
        "applied_time_extras": {},
        "columns": [
            "ds",
            "TAXI_OUT"
        ],
        "metrics": [
            "count"
        ],
        "orderby": [
            [
                "count",
                false
            ]
        ],
        "annotation_layers": [],
        "row_limit": 50,
        "series_columns": [],
        "series_limit": 0,
        "order_desc": true,
        "url_params": {
            "slice_id": "141"
        },
        "custom_params": {},
        "custom_form_data": {},
        "time_offsets": [],
        "post_processing": [
            {
                "operation": "pivot",
                "options": {
                    "index": [
                        "ds"
                    ],
                    "columns": [
                        "ds",
                        "TAXI_OUT"
                    ],
                    "aggregates": {
                        "count": {
                            "operator": "mean"
                        }
                    },
                    "drop_missing_columns": false
                }
            },
            {
                "operation": "flatten"
            }
        ]
    }
]`

The ds and TAXI_OUT and metric values are glued together into one column:
<img width="1084" height="210" alt="image" 
src="https://github.com/user-attachments/assets/bd5685d1-885b-45c9-8aff-024c736045bc";
 />



GitHub link: https://github.com/apache/superset/discussions/38011

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