yugabyte/yugabyte-db

[YSQL] Propagate yb_uniq_keys in the newly added pg15 paths

Open

#26,643 opened on Apr 2, 2025

View on GitHub
 (0 comments) (0 reactions) (1 assignee)C (1,003 forks)batch import
area/ysqlgood first issuekind/enhancementpriority/low

Repository metrics

Stars
 (8,229 stars)
PR merge metrics
 (Avg merge 17d 21h) (92 merged PRs in 30d)

Description

Jira Link: DB-16020

Description

New paths I see at first glance are

create_tidrangescan_path create_memoize_path create_resultscan_path create_foreign_join_path create_foreign_upper_path create_incremental_sort_path

Issue Type

kind/bug

Warning: Please confirm that this issue does not contain any sensitive information

  • I confirm this issue does not contain any sensitive information.

Contributor guide

Research direction
Study each of the listed path creation functions (create tidrangescan path, create memoize path, create resultscan path, create foreign join path, create foreign upper path, create incremental sort path). Identify where yb uniq keys should be propagated by examining similar existing paths like create sort path or create unique path that already propagate yb uniq keys. Trace how yb uniq keys are used in the optimizer to ensure correctness.
Tech stack
cpostgresql
Domain
backend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
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.
Mostly clear
Prerequisites
CPostgreSQL query planningYugabyteDB
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
20