Add parallel-aware C code in a PostgreSQL backend patch or extension — covers ParallelContext lifecycle (EnterParallelMode / CreateParallelContext / InitializeParallelDSM / LaunchParallelWorkers / WaitForParallelWorkersToFinish / DestroyParallelContext / ExitParallelMode), shmtoc DSM allocation + key lookup, ExecXXXInitializeDSM / ExecXXXInitializeWorker / ExecXXXReInitializeDSM hooks on plan nodes, and parallel-safety markings (pgproc.proparallel s/r/u; PARALLEL SAFE / RESTRICTED / UNSAFE). Use whenever a PG patch or extension adds parallel-aware code, picks PARALLEL SAFE/RESTRICTED/UNSAFE for a SQL-callable function, extends execParallel.c, plumbs a worker shmem state via shmtoc, or debugs a parallel worker DSM/TOC issue. Skip for DBA tuning of maxparallelworkers GUC, OpenMP / CUDA / pthread / Tokio / Go-goroutine parallelism, JavaScript Promise.all and async-iter parallel fetches, generic worker-pool questions, and ML data-parallel training.
Install with
Claude CodeCodexCursorGitHub CopilotGemini CLI
Supported by the Atlas install prompt. Skill-specific requirements vary.
Skill stats
Skills1CategoryEngineeringStars0
About this skill
Add parallel-aware C code in a PostgreSQL backend patch or extension — covers ParallelContext lifecycle (EnterParallelMode / CreateParallelContext / InitializeParallelDSM / LaunchParallelWorkers / WaitForParallelWorkersToFinish / DestroyParallelContext / ExitParallelMode), shmtoc DSM allocation + key lookup, ExecXXXInitializeDSM / ExecXXXInitializeWorker / ExecXXXReInitializeDSM hooks on plan nodes, and parallel-safety markings (pgproc.proparallel s/r/u; PARALLEL SAFE / RESTRICTED / UNSAFE). Use whenever a PG patch or extension adds parallel-aware code, picks PARALLEL SAFE/RESTRICTED/UNSAFE for a SQL-callable function, extends execParallel.c, plumbs a worker shmem state via shmtoc, or debugs a parallel worker DSM/TOC issue. Skip for DBA tuning of maxparallelworkers GUC, OpenMP / CUDA / pthread / Tokio / Go-goroutine parallelism, JavaScript Promise.all and async-iter parallel fetches, generic worker-pool questions, and ML data-parallel training.
Quick start
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Add parallel-aware C code in a PostgreSQL backend patch or extension — covers ParallelContext lifecycle (EnterParallelMode / CreateParallelContext / InitializeParallelDSM / LaunchParallelWorkers / WaitForParallelWorkersToFinish / DestroyParallelContext / ExitParallelMode), shm_toc DSM allocation + key lookup, ExecXXXInitializeDSM / ExecXXXInitializeWorker / ExecXXXReInitializeDSM hooks on plan nodes, and parallel-safety markings (pg_proc.proparallel s/r/u; PARALLEL SAFE / RESTRICTED / UNSAFE). Use whenever a PG patch or extension adds parallel-aware code, picks PARALLEL SAFE/RESTRICTED/UNSAFE for a SQL-callable function, extends execParallel.c, plumbs a worker shmem state via shm_toc, or debugs a parallel worker DSM/TOC issue. Skip for DBA tuning of max_parallel_workers GUC, OpenMP / CUDA / pthread / Tokio / Go-goroutine parallelism, JavaScript Promise.all and async-iter parallel fetches, generic worker-pool questions, and ML data-parallel training.
About this listing
Category
Engineering
Reported license
PostgreSQL
Listing language (estimated)
English
Review status
Not individually reviewed
Agent compatibility
Atlas installation supports Claude Code, Codex, and Cursor. Skill-specific dependencies and features are checked during setup.
Claude Code
Codex
Cursor
GitHub Copilot
Gemini CLI