pingcap / pingcap/tiflash

Support more Aggregation functions to test

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type/enhancement
Dominant language
C++
Stars
1k
Forks
423
Avg merge
1d 15h
Merged PRs (30d)
24

Description

Enhancement

releated issue: #4609

Aggregation functions planned to be added:

  • group_concat
  • first_row
  • sum

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reviewing related issue #4609 and the existing aggregation-function test coverage. Locate the implementation and tests for aggregation functions, then determine how group_concat, first_row, and sum fit the current support pattern. Done means the listed functions are supported and covered by tests.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
databases
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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