[Bug] backend filtering on null does not work

[hyamanieu]

Describe the bug

Checking the example in https://grafana.com/docs/plugins/yesoreyeram-infinity-datasource/latest/query/backend/ , one can see the example name != 'MacBook' && price != null as a filter.

Well it does not work

Steps to reproduce

Set:

• type: JSON
• Parser: backend
• Source: Inline
• Data: [{"name":"notnull", "value": "somevalue"},{"name":"null", "value": null}]
• Filter: value != null

Result: every row is shown, instead of only the one with name "notnull"

Note: bugs will be fixed only if enough information provided to reproduce the issue

Sample Data

[{"name":"notnull", "value": "somevalue"},{"name":"null", "value": null}]

Version Details:

• Grafana version : 10.4.1
• Plugin version : 2.7.1

[yesoreyeram]

Hiya. Sorry for the delay and sorry that you are having trouble with backend filtering. I can reproduce this and fix is on the way.

Thank you for the contribution.