Add Support for Deleting Data Points in InfluxDB 3.x

[kenchen20050821]

Use case:
InfluxDB 3.x currently ​lacks granular deletion of individual data points, forcing users to delete entire measurement
This limitation:
​Increases operational overhead​ for correcting single-point anomalies (requires deleting entire measurement)
​Wastes storage resources​ by deleting valid data alongside targeted points

Proposal:
Implement a ​point-level deletion API​ using a ​composite primary key:
-- Syntax Example
DELETE FROM measurement
WHERE _measurement='cpu'
AND _time='2025-07-11T00:00:00Z'
AND _field='usage'
AND host='server-01' -- Optional unique tag

Current behaviour:
only measurement level deleting.

Desired behaviour:
Describe what you want.

Alternatives considered:
1.Tombstoning

[allran]

Yes, methods such as Update and Delete are urgently needed. I see that it seems that all three-party libraries do not support it at present

[hiltontj]

@kenchen20050821 - this is a planned feature, but unfortunately it is too soon to give any estimate on when it will ship. Thank you for opening the issue, as far as I can tell, there isn't currently an issue open for this feature, so I can keep it open for that purpose.