fix: [6789525493] Fix tsma drop with if exists.

[Simon9997]

Description

Issue(s)

• Close/close/Fix/fix/Resolve/resolve: Issue Link

Checklist

Please check the items in the checklist if applicable.

• Is the user manual updated?
• Are the test cases passed and automated?
• Is there no significant decrease in test coverage?

[gemini-code-assist]

Warning

You have reached your daily quota limit. Please wait up to 24 hours and I will start processing your requests again!

[Copilot]

Pull request overview

This PR aims to make DROP TSMA IF EXISTS succeed when the target TSMA does not exist (instead of returning sma not exist), and adds a regression test for that behavior.

Changes:

• Suppress parser error logging for the expected “TSMA not exist” condition when fetching TSMA metadata.
• Update translateDropTSMA to treat TSDB_CODE_MND_SMA_NOT_EXIST as success when IF EXISTS is specified.
• Add a regression test that drops a non-existent TSMA with IF EXISTS.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
test/cases/19-TSMAs/test_tsma.py	Adds regression coverage for dropping a missing TSMA with IF EXISTS.
source/libs/parser/src/parUtil.c	Avoids emitting parser error logs for TSDB_CODE_MND_SMA_NOT_EXIST from TSMA cache lookups.
source/libs/parser/src/parTranslater.c	Adjusts TSMA lookup/error handling during drop translation to support IF EXISTS.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

You can also share your feedback on Copilot code review. Take the survey.

[Copilot]

Pull request overview

This PR fixes DROP TSMA IF EXISTS behavior so that dropping a non-existent TSMA no longer fails, and adds regression coverage to ensure both the error-on-missing (without IF EXISTS) and no-op (with IF EXISTS) semantics behave correctly.

Changes:

• Update TSMA drop translation to treat “TSMA not exist” as success when IF EXISTS is specified.
• Extend TSMA test cases to validate repeated drops fail normally, while DROP TSMA IF EXISTS ... succeeds.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
source/libs/parser/src/parTranslater.c	Makes translateDropTSMA return success (no cmd message) when TSMA is missing and IF EXISTS was used.
test/cases/19-TSMAs/test_tsma.py	Adds assertions for post-drop error behavior and validates DROP TSMA IF EXISTS is a successful no-op.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[dapan1121]

LGTM