Hi, I’m new to redash. Is there a way to automatically add a series to y-axis depend on queries.
I want to get all data from my MySQL table, (with SELECT * FROM […]) and if I add new column in my table, I want the chart to display the new column data on the next refresh.

Not automatically. You would modify the visualization to include another Y-column. Or write your query to return multiple values per x-axis value and a Grouping Field that reflects the new column name.