apache/dolphinscheduler

[Feature][param] The built-in parameters cannot express the beginning date of the month for n-1 days

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#16,510 opened on Aug 26, 2024

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 (3 comments) (0 reactions) (0 assignees)Java (4,324 forks)batch import
featurehelp wanted

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Description

Search before asking

  • I had searched in the issues and found no similar feature requirement.

Description

example: Today is August 26, 2024 Yesterday: $[yyyy-MM-dd-1] = 2024-08-25 At the beginning of the month: ??? = 2024-08-25 --> 2024-08-01 Unable to obtain the beginning date of the month based on $[yyyy-MM-dd-1]

Use case

I hope to express it through built-in parameters and pass the parameters through another task

Related issues

No response

Are you willing to submit a PR?

  • Yes I am willing to submit a PR!

Code of Conduct

Contributor guide

Research direction
Investigate the built in parameter implementation in DolphinScheduler, likely in 'org.apache.dolphinscheduler.common.utils.DateUtils' or the parameter parsing class. Look at how existing parameters like $[yyyy MM dd 1] are processed, and add support for a new expression to get the first day of the current month, e.g., $[yyyy MM 01]. Include parsing logic and tests.
Tech stack
java
Domain
backend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Basic Java knowledgeUnderstanding of DolphinScheduler parameter syntax
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70