[Bug] Fails to render a chart when dataset has a field called "length"

[scottpaulin]

Version

5.4.0

Link to Minimal Reproduction

https://jsfiddle.net/pb25u3gh/

Steps to Reproduce

Create a chart with echarts or echarts-for-react

When a field of the input dataset is called "length" then echarts fails to render and does not output an error or warning.

The following options result in echarts failing to render a chart:

{
    "dataset": {
        "source": [
            {
                "length": 1,
                "elevation_above_sea_level": 4,
                "width": 4
            }
        ]
    },

    "xAxis": {
        "type": "value"
    },
    "yAxis": {
        "type": "value"
    },
    "series": [
        {
            "type": "line",
            "encode": {
                "x": "length",
                "y": "elevation_above_sea_level"
            }
        }
    ]
}`

echarts is able to render a chart with the following options
`{
    "dataset": {
        "source": [
            {
                "ln": 1,
                "elevation_above_sea_level": 4,
                "width": 4
            }
        ]
    },

    "xAxis": {
        "type": "value"
    },
    "yAxis": {
        "type": "value"
    },
    "series": [
        {
            "type": "line",
            "encode": {
                "x": "length",
                "y": "elevation_above_sea_level"
            }
        }
    ]
}

Current Behavior

When a dataset has a field called length then echarts does not render a chart or throw an error/warning

Expected Behavior

When a dataset has a field called "length" then echarts should either:

• render the chart correctly, or
• print an error or warning to the console

Environment

- OS:Ubuntu 22.10
- Browser:Chrome
- Framework: React (Nextjs)

Any additional comments?

ECharts is an amazing library. Thank you for all of your efforts

[helgasoft]

Yes, it looks like a bug.
Workarounds are to rename or use dataset.dimensions.
Demo Code

[susiwen8]

Confirm, bug from zrender