taosdata/TDengine

in tdengine 2.6.0.12, new data with a duplicate timestamp does not overwrite existing data but just disappears

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#22,026 opened on Jul 11, 2023

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Description

General Questions A general question should be related to TDengine's user's manual, user experience, milestones, business cooperations etc. Before you ask a question, please:

  1. Try searching for answers in the official documentation
  2. Try searching in the existing issues on GitHub
  3. Try searching on tech forums such as Stack Overflow, Quora, CSDN, v2ex etc.
  4. Try using online searching engines such as Google, Bing, Baidu

If all the ways above couldn't help, please clearly and concisely describe what the question is.

Contributor guide

Research direction
Investigate the insertion logic for handling duplicate timestamps in TDengine's storage engine. Focus on the code path that checks for existing timestamp and decides whether to overwrite or discard the new data. Look for recent changes related to this behavior.
Tech stack
c
Domain
database
Issue type
Bug
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.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
CDatabase Concepts
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30