pingcap / pingcap/tiflash

Implement `Agg_BitXor` function push down

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#5,119 1 comment 0 reactions 0 assignees View on GitHub

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component/compute good first issue help wanted type/enhancement type/feature-request
Dominant language
C++
Stars
1k
Forks
423
Avg merge
1d 15h
Merged PRs (30d)
24

Description

Feature Request

Describe the feature you'd like:

We'd like to support Agg_BitXor function push down.

Teachability, Documentation, Adoption, Migration Strategy:

At least one integration test and several unit tests.

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 locating the existing Agg_BitXor implementation and the code paths for aggregate-function pushdown. Then inspect comparable integration and unit tests to determine the expected behavior. Done means Agg_BitXor is pushed down successfully, with at least one integration test and several unit tests covering it.

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
Needs clarification
Newbie friendliness
30/100

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