cube.js playground not plotting data correctly - cube.js

Question

I am using cube.js to compare the change in data over the time by plotting it as a line graph .
Step 1 :
After generating cube.js schema successfully , data looks like this:
Step 2 :
Now, while I am trying to check the line graph, it's showing the line as below . No line is formatted. Unfortunately, it's not working for the bar graph also .
Moreover, in SQL the data type for the value is : float(10,10) and timestamp
Apart from that, cube.js console has not error trace , rather its working fine :
Performing query: scheduler-0070c129-f83a-45db-ae09-aac6f9858200
Executing SQL: scheduler-0070c129-f83a-45db-ae09-aac6f9858200
--
SELECT FLOOR((UNIX_TIMESTAMP()) / 10) as refresh_key
Moreover , I tried as below : [all time ,w/o grouping and pivot settings as I need ] , yet no luck ,
However, If I add measure count , the count is plotting the lie not the expected y-axis data as I configured in pivot settings.
My question is : what's going wrong ?

Answer 1

My goal was to generate a line graph for the change of a numerical value over time:
x-axis: date/time.
y-axis: my numerical value.
Cube.js Generated the following schema for my data.
The problem with this schema was that String Type was assigned to the age dimension(clearly should be a Number). Moreover ,there are no measures for filed age ,which I am trying to plot.
cube(`ConceptDrifts`, {
sql: `SELECT * FROM cube.concept_drifts`,
preAggregations: {
},
joins: {
},
measures: {
count: {
type: `count`,
drillMembers: [date]
},
testCount: {
sql: `test_count`,
type: `sum`
}
},
dimensions: {
age: {
sql: `age`,
type: `string`
},
maxAge: {
sql: `max_age`,
type: `string`
},
sex: {
sql: `sex`,
type: `string`
},
sexSd: {
sql: `sex_sd`,
type: `string`
},
date: {
sql: `date`,
type: `time`
}
},
dataSource: `default`
});
Therefore, I changed the schema at /cube/conf/schema# manually
Added new measures a:
ag :{
type : `number`,
sql : `age`,
drillMembers : [age]
}
And, changed the type (as number ) in dimensions :
dimensions: {
age: {
sql: `age`,
type: `number`
},
maxAge: {
sql: `max_age`,
type: `number`
},
sex: {
sql: `sex`,
type: `number`
},
sexSd: {
sql: `sex_sd`,
type: `number`
},
date: {
sql: `date`,
type: `time`
}
},
dataSource: `default`
});
As a result, the graph looks like below :
More reference :
Data Schema Concepts
Drilldowns