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Anastasia Lubennikova
2023-10-31 13:29:25 +00:00
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neon extension consists of several parts:
### shared preload library `neon.so`
- implements storage manager API and network communications with remote page server.
- walproposer: implements broadcast protocol between postgres and WAL safekeepers.
- control plane connector: Captures updates to roles/databases using ProcessUtility_hook and sends them to the control ProcessUtility_hook.
- remote extension server: Request compute_ctl to download extension files.
- file_cache: Local file cache is used to temporary store relations pages in local file system for better performance.
- relsize_cache: Relation size cache for better neon performance.
### SQL functions in `neon--*.sql`
Utility functions to expose neon specific information to user and metrics collection.
This extension is created in all databases in the cluster by default.