[mixed time-series] extra x-axis labels

[kamalkeshavani-aiinside]

When creating the chart with only 1-2 bars on x-axis, some unnecessary x-axis labels are displayed.

Expected results

Number of x-axis labels should be same as number of data points.

Actual results

Excessive x-axis labels are displayed.

Screenshots

With Time Grain: Month

With Time Grain: Quarter

How to reproduce the bug

1. Create a Mixed Time-series chart with limited number of points on x-axis

Environment

• superset version: 1.2
• python version: 3.7
• node.js version: v14.15.5

Checklist

Make sure to follow these steps before submitting your issue - thank you!

• I have checked the superset logs for python stacktraces and included it here as text if there are any.
• I have reproduced the issue with at least the latest released version of superset.
• I have checked the issue tracker for the same issue and I haven't found one similar.

Additional context

Add any other context about the problem here.

[junlincc]

some unnecessary x-axis labels are displayed.

you mean these? what time grain did you set for the bar?

[kamalkeshavani-aiinside]

Yes, this was with Time grain 'month'. I updated the original comment with this info.

[junlincc]

Got it, this is a limitation from Echarts, the charting library we use. unfortunately there's no easy way to resolve ATM. apologies🙏

[Pedrowach]

This bug is still Active. Any update to solve it? Its really annoying cause the data points are no correctly correlated to the X-axis labels.

[JoseAnaya28]

Agreed, I want to display a weekly chart but the charts display labels for each day confusing the end users. Super annoying

Should only appear two labels for each week's data point