pingcap / pingcap/tiflash

Support enum expressions push down

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

Description

Related TiDB issue: https://github.com/pingcap/tidb/issues/23619

Tasks:

  • Support Enum scalar expressions in TiFlash
  • Support Enum aggregation in TiFlash
  • Testing

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

No files, tests, or entry points are named. Start by reading the linked TiDB issue and locating TiFlash's handling of scalar expressions and aggregation for Enum values. Done means both Enum scalar-expression pushdown and Enum aggregation are supported, with tests covering them.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
databases
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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